5.56x45mm NATO Upper Receivers

Fortis Billet Dust Cover - Carbon Fiber - Grey

Fortis Billet Dust Cover - Carbon Fiber - FDE

Fortis Billet Dust Cover - Carbon Fiber - Blue

Fortis Billet Dust Cover - Carbon Fiber - Black

Fortis Billet Dust Cover - Standard

16" AR 15 CA Compliant Mid Length Upper Assembly

Ar-15 M4 Build Kit M-Lok 5.56mm - Ar15 16'''' M4 Build Kit M-Lok Black

Ar-15 M4 Upper Receivers M-Lok 5.56mm - Ar-15 16'''' M4 Upper Assy 5.56 No Bcg/Charging Handle

Ar-15 M4 Upper Receivers M-Lok 5.56mm - Ar-15 16'''' M4 Complete Upper Assembly

Ar-15 M16 A1 Upper Receiver - Brn-16a1 M16a1 Upper Receiver Black

Ar-15 Stag 15 16'''' Upper Build Kit 5.56mm - Ar-15 Stag 15 16 Upper Build Kit 5.56mm

Ar-15 M4e1-T 14.5'''' Upper Build Kit 5.56mm - Ar-15 M4e1-T 14.5 Upper Build Kit 5.56mm

Ar-15 M4e1 16'''' Upper Build Kit 5.56mm - Ar-15 M4e1 16 Upper Build Kit 5.56mm

Ar-15 Colt 16 Upper Build Kit 5.56mm - Brn Ar-15 Colt Upper Build Kit, 5.56mm, 16'''' Bbl

20" 5.56 Gov / SOCOM M-LOK Upper Assembly

UTG AR15 Quick Install Dust Cover - Black

16" Gov Mid M-LOK Upper Assembly - Magpul FDE

16" 5.56 Left Handed AR-15 Complete Upper Assembly

Anderson Stripped Sport Upper Receiver - Black

One Horse 7.5" 5.56 SOCOM Pistol 1:7 M-LOK Complete Upper

One Horse 10.5" 5.56 SOCOM Carbine 1:7 M-LOK Complete Upper

One Horse 16" 5.56 SOCOM Midlength 1:8 M-LOK Complete Upper

7.5" Slick Side Billet 5.56 Nitride Pistol M-LOK AR-15 Complete Upper Assembly

VLTOR MUR Upper Receiver With Bolt Assist And Shell Deflector - Null Anodize - Grade B