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SOPMOD
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<h2 id="block-i">Block I</h2> <p>The original SOPMOD Block I kit included the following: </p> <ul><li><a href="/facts/Knight%2527s_Armament_Company/1XAvxmrK">Knight's Armament Company</a> (KAC) <a href="/facts/Picatinny_rail/ujtT0Mq7">Rail Interface System</a>/Rail Adapter System (RIS/RAS) <a href="/facts/Forearm_(firearm_component)/v9We4pjH">forearm</a> with rail covers of various lengths.</li> <li>KAC Vertical Foregrip (VFG)</li> <li>KAC 300m <a href="/facts/Backup_iron_sights/7YkokVV2">backup iron sights</a> (BUIS)</li> <li><a href="/facts/Trijicon/HlYlx1ve">Trijicon</a> TA01M4A1 4x32mm <a href="/facts/Advanced_Combat_Optical_Gunsight/jszBgeT2">Advanced Combat Optical Gunsight</a> (ACOG)</li> <li><a href="/facts/Aimpoint/BF01gJl0">Aimpoint</a> ECOS-N (Enhanced Combat Optical Sight-Navy), a variant of the <a href="/facts/Aimpoint_CompM2/grfXTddf">CompM2</a> using the Wilcox Aimpoint CompM mount instead of the standard issue QRP mount</li> <li>Tactical Ordnance and Equipment Improved Combat Sling, which allows for secure cross body/patrol carry.</li> <li>Precision Reflex, Inc. (PRI) M69 Bracket Mount for the <a href="/facts/AN%2fPVS-14/vC9889SV">AN/PVS-14</a> <a href="/facts/Night_vision/tm6ToQgg">night vision</a> <a href="/facts/Night-vision_device/jJ58YGa0">device</a>.</li></ul> <p>Only two of following were included per kit: </p> <ul><li><a href="/facts/Insight_Technology/CTstalpp">Insight</a> <a href="/facts/AN%2fPEQ-2/rNJuxf2a">AN/PEQ-2</a> <a href="/facts/Laser_sight_(firearms)/hL5ShCTe">Infrared Target Pointer/Illuminator/Aiming Laser</a> (ITPIAL)</li> <li>Insight <a href="/facts/Flashlight/WFx32GbI">Visible Light Illuminator</a> (VLI)<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a></li> <li><a href="/facts/Trijicon/HlYlx1ve">Trijicon</a> RX01M4A1 1x24 Dual Illuminated <a href="/facts/Reflex_sight/uRaaCAFL">Reflex Sight</a></li> <li>KAC NT-4 Quick-Detach <a href="/facts/Suppressor/ok8jwWHM">Sound Suppressor</a> (QDSS) kit<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></li></ul> <p>Only one of the following was included per kit: </p> <ul><li><a href="/facts/M203_grenade_launcher/drnn8N0k">M203A1 Grenade Launcher</a> with a 9-inch barrel</li> <li><a href="/facts/Knight%2527s_Armament_Company/1XAvxmrK">KAC</a> M203 Grenade Launcher Quick Release Front Bracket</li> <li>Quick-attach M203 Grenade Launcher Leaf Sight</li> <li><a href="/facts/Insight_Technology/CTstalpp">Insight</a> <a href="/facts/AN%2fPEQ-5/qcsNBagX">AN/PEQ-5</a> Carbine Visible Laser (CVL)</li> <li>Insight AN/PAQ-4 Infrared Aiming Light</li> <li><a href="/facts/AN%2fPVS-17/UCaPp3oP">AN/PVS-17A</a> Mini- Night Vision Sight</li> <li>AN/PSQ-18A M203 Day/Night Sight</li> <li>Carrying/storage case for kit accessories</li></ul> <p>Part of the SOPMOD Block I (but not always issued with kits): </p> <ul><li>Gas-deflecting <a href="/facts/Cocking_handle/AT2z4dxa">charging handles</a> (presumably the PRI M84 Gas Buster Charging Handle with Military Big Latch)</li> <li>Extraction Parts Set #2</li> <li>Redi-Mag</li> <li><a href="/facts/Lewis_Machine_and_Tool_Company/XjEkmqBC">Lewis Machine and Tool Company</a> (LMT) / B5 Systems Sloping Cheekweld Stock</li> <li>Ambidextrous Selector Switch</li> <li>Visible Bright Light II (VBL II) (based on the older gen <a href="/facts/SureFire/kjl0q3j6">Surefire</a> M962C model, replacement for the Insight VLI)<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></li> <li>High Reliability Magazines (HRM) steel and aluminum<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a><a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></li></ul> <p>If more of the accessories are needed, it is typical for units to "<a href="/facts/Cannibalization_of_machine_parts/SLr7vkCf">cannibalize</a>" the kits of inactive teams. The documentation for the kit does not require a rewrite if improved replacements for any of the current items can be found. As a result, this content list has changed over time. Several potential additions include the KAC <a href="/facts/Knight%2527s_Armament_Company_Masterkey/Ln0Hy2RE">Masterkey</a> Shotgun, the <a href="/facts/M26_Modular_Accessory_Shotgun_System/dVhcXJBV">M26 Modular Accessory Shotgun System</a>, and the <a href="/facts/M320_Grenade_Launcher_Module/H8dAYSMv">M320 grenade launcher</a>.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> Also, various <a href="/facts/EOTech/GLwBQwPG">EOTech</a> holographic sights, prominently EOTech 551s and 552s are used on many SOPMOD configured M4s. </p> <h2 id="block-i-phased-replacements">Block I Phased Replacements</h2> <ul><li><a href="/facts/Daniel_Defense/48HxWL23">Daniel Defense</a> M4A1 RIS II (Rail Interface System), GL/SSC RIS II (Grenade Launcher/Sound Suppressor Capable), and MK18 RIS II (with FSP (front sight post) variations) <a href="/facts/Barrel_shroud/schQR3PB">free-float handguards</a><a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a><a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a><a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a><a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></li> <li><a href="/facts/Insight_Technology/CTstalpp">Insight</a> M3X VBL III Gun Light (SU-233/PVS), replacement for the VBL II</li> <li>Insight M6X VBL III Integrated Gun Light (SU-238/PVS), replacement for the VBL II</li> <li><a href="/facts/EOTech/GLwBQwPG">EOTech</a> 553 Holographic Weapon Sight (SU-231/PEQ)</li> <li><a href="/facts/Trijicon/HlYlx1ve">Trijicon</a> <a href="/facts/Advanced_Combat_Optical_Gunsight/jszBgeT2">ACOG</a> TA31ECOS 4x Scope + <a href="/facts/Docter_Optics/zXI1J0bJ">Docter</a> Miniature Red Dot (MRD) (SU-237/PVS)<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></li> <li><a href="/facts/AN%2fPVS-17/UCaPp3oP">AN/PVS-17</a> Product Improvement Kit</li> <li>BUIS II<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></li></ul> <h2 id="block-ii">Block II</h2> <p>The MDNS (Miniature Day-Night Sight) program included the Block I Phased Replacement components and the Block II components<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a> </p> <ul><li><a href="/facts/Daniel_Defense/48HxWL23">Daniel Defense</a> M4A1 RIS II (Rail Interface System), GL/SSC RIS II (Grenade Launcher/Sound Suppressor Capable), and MK18 RIS II (with FSP (front sight post) variations) free-float handguards<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a><a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a><a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a><a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a></li> <li><a href="/facts/Insight_Technology/CTstalpp">Insight</a> M3X VBL III Gun Light (SU-233/PVS), replacement for the VBL II</li> <li>Insight M6X VBL III Integrated Gun Light (SU-238/PVS), replacement for the VBL II</li> <li>Insight WMX 200 Tactical Weapon Light</li> <li><a href="/facts/EOTech/GLwBQwPG">EOTech</a> 553 Holographic Weapon Sight (SU-231/PEQ)</li> <li>EOTech EXPS3-0 Holographic Weapon Sight (SU-231A/PEQ)<a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a></li> <li><a href="/facts/AN%2fPVS-17/UCaPp3oP">AN/PVS-17</a> Product Improvement Kit</li> <li>BUIS II<a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a></li> <li><a href="/facts/Insight_Technology/CTstalpp">Insight</a> <a href="/facts/AN%2fPEQ-15/bMP2uuK7">LA-5C/PEQ ATPIAL</a> (Advanced Target Pointer Illuminator Aiming Laser), an ultra high-powered variant of the AN/PEQ-15</li> <li>Insight CNVD-T Thermal Sight (SU-232/PAS)<a class="footnote-ref" id="fnref:24" href="#fn:24"><sup>24</sup></a></li> <li>EOTech M40GL Grenade Launcher Sight (SU-253/PEQ ECOS-GL)<a class="footnote-ref" id="fnref:25" href="#fn:25"><sup>25</sup></a></li> <li><a href="/facts/ELCAN_Optical_Technologies/9jd8QgjJ">Elcan</a> SpecterDR 1-4x Scope + <a href="/facts/Docter_Optics/zXI1J0bJ">Docter</a> MRD (SU-230/PVS)</li> <li><a href="/facts/Trijicon/HlYlx1ve">Trijicon</a> <a href="/facts/Advanced_Combat_Optical_Gunsight/jszBgeT2">ACOG</a> TA31ECOS 4x Scope + Docter MRD (SU-237/PVS)<a class="footnote-ref" id="fnref:26" href="#fn:26"><sup>26</sup></a></li> <li>Insight AN/PVS-24 Clip-On Night Vision Device-Image Intensified (CVND-I2)<a class="footnote-ref" id="fnref:27" href="#fn:27"><sup>27</sup></a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Special Operations Peculiar Modification (SOPMOD) Kit". GlobalSecurity.org. Archived from the original on April 16, 2022. <a href="https://web.archive.org/web/20220416225450/https://www.globalsecurity.org/military/systems/ground/sopmod.htm" target="_blank">https://web.archive.org/web/20220416225450/https://www.globalsecurity.org/military/systems/ground/sopmod.htm</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Taylor, Gus (May 15, 2003). "SOPMOD Program Overview". NDIA. Archived from the original on June 3, 2022. Retrieved June 3, 2022. <a href="https://web.archive.org/web/20220603235213/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2003/smallarms/tay.ppt" target="_blank">https://web.archive.org/web/20220603235213/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2003/smallarms/tay.ppt</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Special Operations Peculiar Modification (SOPMOD) Kit". GlobalSecurity.org. Archived from the original on April 16, 2022. <a href="https://web.archive.org/web/20220416225450/https://www.globalsecurity.org/military/systems/ground/sopmod.htm" target="_blank">https://web.archive.org/web/20220416225450/https://www.globalsecurity.org/military/systems/ground/sopmod.htm</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Rottman, Gordon L. (2011). The M16. Botley, Oxford, UK: Osprey Publishing. pp. 45–46. ISBN 978-1849086905. Retrieved June 3, 2022. <a href="978-1849086905" target="_blank">978-1849086905</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Taylor, Gus (May 15, 2003). "SOPMOD Program Overview". NDIA. Archived from the original on June 3, 2022. Retrieved June 3, 2022. <a href="https://web.archive.org/web/20220603235213/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2003/smallarms/tay.ppt" target="_blank">https://web.archive.org/web/20220603235213/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2003/smallarms/tay.ppt</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"US Marine Corps Intends To Sole Source Knights Armament Co NT-4 Suppressor". Soldier Systems Daily. July 14, 2020. Archived from the original on September 3, 2020. Retrieved June 3, 2022. <a href="https://web.archive.org/web/20200903044831/https://soldiersystems.net/2020/07/14/us-marine-corps-intends-to-sole-source-knights-armament-co-nt-4-suppressor/" target="_blank">https://web.archive.org/web/20200903044831/https://soldiersystems.net/2020/07/14/us-marine-corps-intends-to-sole-source-knights-armament-co-nt-4-suppressor/</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"5855-01-501-3081 (M952NXM07) Data". Part Target. Archived from the original on June 26, 2022. Retrieved June 26, 2022. <a href="https://web.archive.org/web/20220626111520/https://www.parttarget.com/5855-01-501-3081_5855015013081_M952NXM07.html" target="_blank">https://web.archive.org/web/20220626111520/https://www.parttarget.com/5855-01-501-3081_5855015013081_M952NXM07.html</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Rottman, Gordon L. (2011). The M16. Botley, Oxford, UK: Osprey Publishing. pp. 45–46. ISBN 978-1849086905. Retrieved June 3, 2022. <a href="978-1849086905" target="_blank">978-1849086905</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Taylor IV, Lucius A. "Gus"; Glenn, Eric; Campion, Tucker (April 17, 2006). "SOPMOD PROGRAM OVERVIEW For the National Defense Industrial Association Small Arms Symposium" (PDF). Defense Technical Information Center. Archived from the original (PDF) on September 13, 2014. Retrieved June 3, 2022. <a href="https://web.archive.org/web/20140913045158/http://www.dtic.mil/ndia/2006smallarms/taylor.pdf" target="_blank">https://web.archive.org/web/20140913045158/http://www.dtic.mil/ndia/2006smallarms/taylor.pdf</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Rottman, Gordon L. (2011). The M16. Botley, Oxford, UK: Osprey Publishing. pp. 45–46. ISBN 978-1849086905. Retrieved June 3, 2022. <a href="978-1849086905" target="_blank">978-1849086905</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>"MK18 RAIL INTERFACE SYSTEM II, RIS II (FDE)". Daniel Defense. Archived from the original on September 22, 2020. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20200922170657/https://danieldefense.com/mk18-risii-fde.html" target="_blank">https://web.archive.org/web/20200922170657/https://danieldefense.com/mk18-risii-fde.html</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>"M4A1 RAIL INTERFACE SYSTEM II, RIS II (BLACK)". Daniel Defense. Archived from the original on May 29, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220529041053/https://danieldefense.com/m4a1-risii-black.html" target="_blank">https://web.archive.org/web/20220529041053/https://danieldefense.com/m4a1-risii-black.html</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"M4A1 FSP RAIL INTERFACE SYSTEM, RIS II (BLACK)". Daniel Defense. Archived from the original on May 29, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220529022255/https://danieldefense.com/m4a1-fsp-risii-black.html" target="_blank">https://web.archive.org/web/20220529022255/https://danieldefense.com/m4a1-fsp-risii-black.html</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"Rare Sighting Of A Daniel Defense GL/SSC RIS II". Soldier Systems Daily. October 20, 2016. Archived from the original on May 14, 2021. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20210514030911/https://soldiersystems.net/2016/10/20/rare-sighting-of-a-daniel-defense-glssc-ris-ii/" target="_blank">https://web.archive.org/web/20210514030911/https://soldiersystems.net/2016/10/20/rare-sighting-of-a-daniel-defense-glssc-ris-ii/</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"1240-01-540-1186 (TA31ECOS) Data". Part Target. Archived from the original on June 10, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220610075047/https://www.parttarget.com/1240-01-540-1186_1240015401186_TA31ECOS.html/" target="_blank">https://web.archive.org/web/20220610075047/https://www.parttarget.com/1240-01-540-1186_1240015401186_TA31ECOS.html/</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>Taylor IV, Lucius A. "Gus"; Gatewood, Barry (May 8, 2007). "USSOCOM SOPMOD - Miniature Day/Night Sight Development Program" (PDF). NDIA. Archived from the original (PDF) on June 4, 2022. Retrieved June 4, 2022. <a href="https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf" target="_blank">https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>Taylor IV, Lucius A. "Gus"; Gatewood, Barry (May 8, 2007). "USSOCOM SOPMOD - Miniature Day/Night Sight Development Program" (PDF). NDIA. Archived from the original (PDF) on June 4, 2022. Retrieved June 4, 2022. <a href="https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf" target="_blank">https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"MK18 RAIL INTERFACE SYSTEM II, RIS II (FDE)". Daniel Defense. Archived from the original on September 22, 2020. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20200922170657/https://danieldefense.com/mk18-risii-fde.html" target="_blank">https://web.archive.org/web/20200922170657/https://danieldefense.com/mk18-risii-fde.html</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"M4A1 RAIL INTERFACE SYSTEM II, RIS II (BLACK)". Daniel Defense. Archived from the original on May 29, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220529041053/https://danieldefense.com/m4a1-risii-black.html" target="_blank">https://web.archive.org/web/20220529041053/https://danieldefense.com/m4a1-risii-black.html</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>"M4A1 FSP RAIL INTERFACE SYSTEM, RIS II (BLACK)". Daniel Defense. Archived from the original on May 29, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220529022255/https://danieldefense.com/m4a1-fsp-risii-black.html" target="_blank">https://web.archive.org/web/20220529022255/https://danieldefense.com/m4a1-fsp-risii-black.html</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"Rare Sighting Of A Daniel Defense GL/SSC RIS II". Soldier Systems Daily. October 20, 2016. Archived from the original on May 14, 2021. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20210514030911/https://soldiersystems.net/2016/10/20/rare-sighting-of-a-daniel-defense-glssc-ris-ii/" target="_blank">https://web.archive.org/web/20210514030911/https://soldiersystems.net/2016/10/20/rare-sighting-of-a-daniel-defense-glssc-ris-ii/</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>Gurwitch, Scott (June 2017). "History of SOPMOD, Part II". SWAT. Archived from the original on June 5, 2022. Retrieved June 5, 2022. <a href="https://web.archive.org/web/20220605080158/https://www.swatmag.com/article/history-of-sopmod-part-ii/" target="_blank">https://web.archive.org/web/20220605080158/https://www.swatmag.com/article/history-of-sopmod-part-ii/</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> <li id="fn:23"><p>Taylor IV, Lucius A. "Gus"; Gatewood, Barry (May 8, 2007). "USSOCOM SOPMOD - Miniature Day/Night Sight Development Program" (PDF). NDIA. Archived from the original (PDF) on June 4, 2022. Retrieved June 4, 2022. <a href="https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf" target="_blank">https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></p></li> <li id="fn:24"><p>Taylor IV, Lucius A. "Gus"; Gatewood, Barry (May 8, 2007). "USSOCOM SOPMOD - Miniature Day/Night Sight Development Program" (PDF). NDIA. Archived from the original (PDF) on June 4, 2022. Retrieved June 4, 2022. <a href="https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf" target="_blank">https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></p></li> <li id="fn:25"><p>Pittman v. L-3 Communications EOTech, Inc., 2:16-cv-11051-NGE-EAS (E.D. Mich. 22 March 2016), archived from the original on 2020-09-25. <a href="https://web.archive.org/web/20200925004840/https://soldiersystems.net/wp-content/uploads/2016/03/Clay-Pittman-v.-L3-Communications.pdf" target="_blank">https://web.archive.org/web/20200925004840/https://soldiersystems.net/wp-content/uploads/2016/03/Clay-Pittman-v.-L3-Communications.pdf</a> <a href="#fnref:25" class="footnote-back-ref">↩</a></p></li> <li id="fn:26"><p>"1240-01-540-1186 (TA31ECOS) Data". Part Target. Archived from the original on June 10, 2022. Retrieved June 24, 2022. <a href="https://web.archive.org/web/20220610075047/https://www.parttarget.com/1240-01-540-1186_1240015401186_TA31ECOS.html/" target="_blank">https://web.archive.org/web/20220610075047/https://www.parttarget.com/1240-01-540-1186_1240015401186_TA31ECOS.html/</a> <a href="#fnref:26" class="footnote-back-ref">↩</a></p></li> <li id="fn:27"><p>Taylor IV, Lucius A. "Gus"; Gatewood, Barry (May 8, 2007). "USSOCOM SOPMOD - Miniature Day/Night Sight Development Program" (PDF). NDIA. Archived from the original (PDF) on June 4, 2022. Retrieved June 4, 2022. <a href="https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf" target="_blank">https://web.archive.org/web/20220604000940/https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2007/smallarms/5_8_07/Gatewood_300PM.pdf</a> <a href="#fnref:27" class="footnote-back-ref">↩</a></p></li> </ol>