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NBS AR-15/M16 Firing Pin
NBS AR-15 Mil-Spec Barrel Nut
NBS AR-15 Delta Ring Assembly
NBS AR-15 Assembled Upper Receiver
NBS 6.5 Grendel, 16″ Black Nitride M4 Barrel, 1:8 Twist, Carbine Length Gas System Barrel
NBS 16″ 5.56 NATO 1:7 Twist Mid-Length Parkerized Barrel
NBS 16″ 5.56 NATO 1:7 Twist Black Nitride Mid-Length Barrel
NBS .223/5.56/300BLK M16 Profile Left-Handed Bolt Carrier Group Black Nitride
AO Precision True Mil-Spec SP/HPT/MPI 5.56 Bolt Carrier Group
Dirty Bird Rifle Stainless Steel Gas Tube
Dirty Bird Pistol Stainless Steel Gas Tube
Dirty Bird AR-15 Mil-Spec Charging Handle
Rosco Manufacturing Purebred 16″ .223 Wylde Government 1:8 Twist Midlength Stainless Barrel
Dirty Bird Industries 7.5″ 5.56 DRP Pistol M-LOK V2 Upper Assembly
Dirty Bird AR-15 Stripped Upper Receiver
Ballistic Advantage 14.5″ 5.56 NATO Government Profile Midlength Modern Series Barrel
Aero Precision AR-15 Stripped Upper Receiver
Aero Precision AR-15 BAR Barrel Nut
NBS Lightweight .223/5.56 Bolt Carrier Group – Black Nitride
NBS 5″ 5.56 NATO 1:5 Micro Black Nitride Barrel
NBS 20 5.56 Lightweight Contour 1:9 Rifle Length Barrel w/ FSB Phosphate
NBS 11.5″ Slick Side 5.56 Nitride-Carbine M-LOK Upper Assembly
Dirty Bird AR-15 Upper Receiver Parts Kit
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group – Ion Bond DLC