5.56 NATO ammo by cost per round →
- Daniel DefenseDaniel DEF. M4 Carbine V7 5.56x45 16" 32 Rounds M-LOK
- Daniel DefenseDaniel DEF. M4 Carbine V7PRO 5.56x45 18" Flat Dark Earth
- Rock River ArmsRRA LAR15 Coyote Carbine 5.56 16" Barrel 6 POS STK Black
- Rock River ArmsRRA LAR15 Coyote LEF-T Carbine 5.56 16" Barrel 6 POS Black
- Rock River ArmsRRA LAR15 Coyote Rifle 223 Wylde 20" Barrel Fixed STK Black
- Rock River ArmsRRA LAR15 NM A2 223 Wylde 20" HVY Match Barrel A2 STK Black
- Rock River ArmsRRA LAR15 NM A4 223 Wylde 20" HVY Match Barrel A2 STK Black
- Rock River ArmsRRA LAR15 Predator 223 Wylde 6 POS Tan 16" Barrel Black
- Rock River ArmsRRA LAR15 PREDATOR2 223 Wylde w/Scope Mount 16" Barrel Ghost
- Rock River ArmsRRA LAR15 X-1 Rifle 223 Wylde 6 POS Car STK 18" Barrel Black
- Rock River ArmsRRA LAR15X Varmint A4 223 A2 STK 20" S/S Bull Barrel Black
- Rock River ArmsRRA Light Mountain Rifle 5.56 6 POS Car STK 16" Barrel Black
- Rock River ArmsRRA X-1 20" Varmint LTE 223 Wylde 20" S/S Barrel Black
