Results for 5.56x45mm NATO AR Rifles

NBS 16 5.56 Phosphate Carbine M-LOK M4 Upper Assembly

E-Lander 5.56 NATO 20-Round Steel AR-15 Magazine

E-Lander 5.56 NATO 30-Round Steel AR-15 Magazine - 10-Pack

NBS 14.5" 5.56 NATO M4A1 SOCOM Carbine Complete Upper w/ FSB

12.5 5.56 NATO Government Carbine M-LOK Upper Assembly

NBS 16 5.56 NATO Pencil Midlength Lightweight M-LOK Upper Assembly

NBS 10.5 Slick Side Billet 5.56 Nitride Carbine M-LOK Upper Assembly

Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2 - Anodized Black - 15"

Stag Arms 15 16" 5.56 NATO 10rd Semi-Auto Left Handed Tactical Rifle - Black

NBS 7.5 5.56 DRP Pistol M-LOK Upper Assembly

NBS 10.5" Carbine M4 M-LOK 5.56 NATO 1:7 Upper Assembly

Centurion Arms CM4 5.56 Forged AR-15 Lower Receiver

NBS 20" 5.56 Rifle Quad Rail Upper Assembly

NBS 20" 5.56 Rifle M-LOK Upper Assembly

NBS 16" 5.56 Gov / SOCOM Midlength M-LOK Upper Assembly - OD Green

NBS 16" 5.56 Gov / SOCOM Midlength M-LOK Upper Assembly - FDE

NBS 16" 5.56 Left Handed Complete Upper

Colt AR-15 A3 Tactical Carbine 16" Agency Trade-In

M16A1 Classic Rifle

Colt IAR 5.56 Upper Receiver Assembly 16" Barrel

H&R 723 Blem Carbine - Auction

Windham Weaponry R16DA4T Dissipator HBar Rifle- Auction

VZ58 MILITARY Classic 5.56 Rifle

Gilboa Carbine 16" 5.56 AR15 Rifle- Auction