Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16 in Black FNC Chrome Moly Steel Barrel, 15 in M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip, Rifle

Sig Sauer PM400SDI11BBLK M400 SDI 5.56 NATO 30+1 11.50 in Black FNC Chrome Moly Steel Barrel Anodized M-LOK Handguard Polymer Grip

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ArmaLite M15LTC16 M-15 Light Tactical Carbine 5.56x45mm 30+1 16 in Black Chrome Moly Vanadium Barrel, 15 in M-Lok Tactical Handguard, Black Synthetic 6 Position Stock, Black Polymer Grip, Rifle

ZEV AR15CD55616 Core Duty 5.56x45mm 30+1 16 in Black Melonite Chrome Moly Barrel, Black Hard Coat Anodized 7075-T6 Aluminum Receiver, M-LOK Free-Float Handguard, Black Synthetic Magpul SL-S Stock, Black Magpul Grip, Rifle

Springfield Armory HL920556BCA Hellion *CA Compliant 5.56x45mm NATO 10+1 20 in Black Melonite Chrome Moly Vanadium Barrel, Black Polymer Receiver, Polymer M-LOK Handguard, Black Synthetic Bullpup Fixed Stock, Black Polymer Grip, Rifle