5.56x45mm NATO Gun Parts

Aero Precision M4E1-T Complete Upper 14.5in 5.56 Carbine Length BRL 12in M-LOK AR15 ATLAS R-ONE HG Anodized Black

Ballistic Advantage Logic Series Barrel 5.56x45 16 inch Hanson Midlength 1-7 Twist 1/2 x 28 Thread Anodized Black

FRANKLIN ARMORY BFSIII Equipped PDW C7 Pistol w/SBPDW Brace

IWI Tavor X95 5.56 Conversion Kit 13" Black, LH Bolt

BARRET REC7 5.56 NATO 10.3in 30rd - FDE

Spikes Tactical Upper 5.56 16in Midlength LE w/ML Handguard and FSP Black

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 NATO 14.5 in Barrel Government Profile 1-7 Twist 1/2x28 Thread 12 in ATLAS S-ONE M-LOK

Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver Mid Length Barrel 1-7 Twist 1/2x28 A2 Flash Hider 12 in M-LOK Handguard No

Aero Precision M4E1 5.56mm 16in M-LOK Upper Receiver M4 Carbine Length Barrel 1-7 Twist 1/2x28 15in M-LOK Handguard Gen 2 FDE Cerakote

LMT Defense 5.56mm Lower Parts Kit Light, No Trigger

Luth-AR 16 in Light Weight 1-7 kit minus Lower Receiver w/coll. Stock M-Lok Black Carbine

Luth-AR 16 in Light Weight kit minus Lower Receiver w/coll. Stock M-Lok Black Carbine

Faxon AR-15 ION Series Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Suppressor Ready

Faxon AR-15 ION Series Complete Upper Receiver Assembly 5.56x45mm NATO 16" Barrel with Integral Brake

Faxon AR-15 Duty Series SOCOM Complete Upper Receiver Assembly 5.56x45mm NATO 10.5" Barrel Suppressor Ready

Faxon AR-15 Duty Series SOCOM Complete Upper Receiver Assembly 5.56x45mm NATO 16" Barrel

Faxon AR-15 Duty Series SOCOM Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Suppressor Ready

CMC Triggers AR-15 Threaded Stripped Upper Receiver Mil-Spec Black Small

WARRIOR SYSTEMS WSM15 5.56 NATO / 223 Rem Billet AR15 Lower Receiver w/ Flared Mag Well | Black

CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard - Tungsten

Dirty Bird AR-15 Mil-Spec Lower Build Kit

Dirty Bird AR-15 Forged Multi-Cal Receiver Set + SRMS Handguard - Midnight Bronze, 9.5"

Armaspec AR10 Gun Builders Lower Parts Kit SS/ODGreen

Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver Midlength 1-7 Twist Black