AR Parts in 5.56x45mm NATO

Foxtrot Mike Products Mike-156 16" 5.56 NATO G2 Upper

Forward Controls Design URF-F AR-15 Forged Upper Receiver

Forward Controls Design Phosphate M16 Bolt Carrier Group - Smooth (Pre-Production)

Forward Controls Design Enhanced Magazine Release (Blind Hole)

Fortis MFG AR-15 Billet Carbon Fiber Dust Cover

Fortis MFG RED Brake 5.56mm

FN America 16" 5.56 NATO M-LOK Midlength 1:7 Complete Upper

Faxon Firearms 5.56 Chrome Lined 4150 5R Barrel

Faxon Firearms 18" Gov't/Socom 5.56 NATO Rifle-Length 4150 Nitride / Melonite Barrel

Faxon Firearms Gunner AR-15 5.56 NATO Mid-Length 4150 QPQ Barrel

M16 Bolt Carrier Group Sand Cut Low Mas - M16 Enhanced Sand Cut Bolt Carrier Group Nickel Teflon

M16 Bolt Carrier Group Sand Cut Low Mas - Enhanced Low Mass Sand Cut Bolt Carrier Group Nickel Tef

M16 Bolt Carrier Group Sand Cut Low Mas - Enhanced Low Mass Aluminum Sand Cut Bolt Carrier Group

DPM Systems Technologies Captured Heavy Buffer Assembly - AR-15/AR-10

DPM Systems Technologies AR-15 Captured Carbine Buffer - .223/5.56 & 9MM PCC

DPM Systems Technologies Carbine Buffer Assembly - AR-15 .223/5.56

Daniel Defense AR-15 DDM4V7 SLW URG Barreled Upper Receiver 5.56x45mm 14.5" Pinned Barrel with Iron Sights

Daniel Defense 070771912501 .223/5.56 NATO 14.5\" Heavy Phosphate

Daniel Defense 070771617601 5.56mm .223/5.56 NATO 10.3\" Black Heavy Phosphate

Daniel Defense Cold Hammer Forged 5.56 NATO Barrel

Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Mystic Midnight

Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Manganese Phosphate

Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Mystic Silver

Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Mystic Bronze