AR Parts in 5.56x45mm NATO

Mitchell Defense DOC 14.5in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Black Finish M-LOK Free-Float Handguard

Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Jungle Green Finish M-LOK Free-Float Handguard

Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Flat Dark Earth Finish M-LOK Free-Float Handguard

Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Black Finish M-LOK Free-Float Handguard

Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Jungle Green Finish Quad Rail Handguard

Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Flat Dark Earth Finish Quad Rail Handguard

Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Flat Dark Earth Finish M-LOK Free-Float Handguard

Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Black Finish Quad Rail Handguard

Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Black Finish M-LOK Free-Float Handguard

LWRC International LWRCI ICMKII PSD 8" Bbl OD Green Upper ICMKIIU5ODG8

LWRC International LWRC IC-PSD 5.56mm NATO 8.5" 1:7" 1/2x28 Bbl Black Personal Security Detail Complete Upper Receiver ICMKIIU5B8

LWRC International LWRC ICMKII 5.56mm 10" 1/7" 1/2x28 Black Short Barrel Rifle Upper ICMKIIU5B10S

LWRC International LWRC ICMKII 5.56mm 14" 1/7" 1/2x28 OD Green P/W Short Barrel Rifle Upper ICMKIIU5ODG14S

Bilson Arms BA-15FC 5.56 NATO 16in Forward Complete Upper Assembly Standard Mid Length 1-7 Twist 1/2x28 A2 Flash Hider Nitride Fde/Sniper Green

RISE Armament OPMOD RA-212 Extended Latch Charging Handle Olive Drab Green

LWRC International LWRC ICMKII 5.56mm 16" 1/7" 1/2x28 Tungsten Grey Upper ICMKIIU5TG16

LWRC International LWRC ICMKII 5.56mm 16" 1/7" 1/2x28 OD Green Upper ICMKIIU5ODG16

LWRC International LWRC ICMKII 5.56mm 16" 1/7" 1/2x28 FDE Upper ICMKIIU5CK16

LWRC International LWRC ICMKII 5.56mm 14" 1/7" 1/2x28 OD Green Upper ICMKIIU5ODG14P

LWRC International LWRC ICMKII 5.56mm 14" 1/7" 1/2x28 FDE Upper ICMKIIU5CK14P

LWRC International LWRC ICMKII 5.56mm 14" 1:7" 1/2x28 Black Upper ICMKIIU5B14P

LWRC International LWRC ICDI M-LOK Direct Impingement 5.56mm NATO 10.5" 1:7" 1/2x28 Bbl Tungsten Grey Complete Upper Receiver ICDIU5TG10ML

LWRC International LWRC ICDI M-LOK Direct Impingement 5.56mm NATO 10.5" 1:7" 1/2x28 Bbl Patriot Brown Complete Upper Receiver ICDIU5UBC10ML

LWRC International LWRC ICDI M-LOK Direct Impingement 5.56mm NATO 10.5" 1:7" 1/2x28 Bbl OD Green Complete Upper Receiver ICDIU5ODG10ML