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| Entry |
|---|
| Leapers UTG PRO AR15 Super Slim Keymod 15″ Drop-in Car. Length Rail, posted at Optics Planet, review dated Dec. 19, 2017. Site visited Jan. 28, 2019. URL: <https://www.opticsplanet.com/leapers-utg-pro-ar15-super-slim-keymod-15-drop-in-car-length-rail.html> (Year: 2017). |
| UTGLeapers, Leapers/UTG Operators Manual, posted at YouTube, posting date Apr. 19, 2014. Site visited Jan. 28, 2019. URL: < https://www.youtube.com/watch?v=eVU8pREIdvo> (Year: 2014). |
| Pete, New: Midwest Industries 17.5″ MLOK Handguard, posted at The Firearm Blog, posting date Dec. 14, 2016. Site visited Jan. 28, 2019. URL: <https://www.thefirearmblog.com/blog/2016/12/14/midwest-industries-mlok/> (Year: 2016). |
| Nathan S., UTG Pro Release New Slim M-LOK Handguards, posted at The Firearm Blog, posting date Nov. 24, 2015. Site visited Jan. 28, 2019. URL: <https://www.thefirearmblog.com/blog/2015/11/24/utg-pro-release-new-slim-m-lok-handguards/> (Year: 2015). |
| NC Star AR15 Keymod Handguard—Carbine Length, downloaded from https://www.ncstar.com/optics-acc/mounts/ar15-mounts/vmarkmc-keymod-ar-rail-syscarbine on Jun. 5, 2017. |
| ERGO Ultra Lite S 2-Piece Drop-In KeyMod Handguard, downloaded from https://www.midwayusa.com/product/567640/ergo-ultra-lite-s-2-piece-drop-in-keymod-handguard-ar-15-carbine-length-aluminum-black on Jun. 5, 2017. |
| Mission First Tactical Tekko Metal AR15 Carbine 7″ Drop in KeyMod Rail System, downloaded from http://www.missionfirsttactical.com/Products/Rail-Systems/TMARCKRS-7in-Drop-In-KeyMod-Rail on Jun. 5, 2017. |
| Diamond Head Drop-In Handguard, downloaded from http://www.pinsdaddy.com/black-friday-sale-diamond-head-drop-on-rail-system-first-49-gets-it_185YHnazZjqEm7Dgl*a%7CMXfXygT*xhE1VUjeNclakn*DuNyQUoEsJ1erS7cxpXAr9oZC3XCcROjkyDwglvNIJkX6xz1slfoWPxa%7 . . . on Jun. 5, 2017. |
| Strike Industries SI G2 AR Mega Fins Two-Piece Drop-In, downloaded from http://2323862zru3v2q2fq331fqh87fk.wpengine.netdna-cdn.com/wp-content/uploads/2015/03/Strike_Industries_SI_G2_AR_Mega_Fins_Two-Piece_Drop-In_Heptagonal_Free-Float_KeyMod_Modular_Tactical_Handguard_Rail_System_for_Tactical_AR-15_Carbine_SBRs_DefenseReview.com_DR_4.jpg on Jun. 5, 2017. |
| Midwest Industries MI AR-15/M16 M-Series Two Piece Drop-In Handguard, M-LOK™ compatible, Carbine Length, downloaded from https://www.midwestindustriesinc.com/product-p/mi-17m-blk.htm on Jun. 5, 2017. |
| Midwest Industries MI AR-15/M16 K-Series KeyMod Two Piece Drop-In Handguard, Carbine Length downloaded from https://www.midwestindustriesinc.com/product-p/mi-17k.htm on Jun. 5, 2017. |
| Leapers, Inc. UTG Pro AR15 9″ Super Slim Free Float Keymod Compatible Rail, downloaded from http://www.leapers.com/index.php?act=prod_detail&itemno=MTU004SSK&midx=920&allids=919_918_920 on Jun. 5, 2017. |
| Midwest Industries MI G3 M-Series One Piece Free Float Handguard, M-LOK compatiable—Black, Jun. 5, 2017. |