CMMG Ejection Port Cover Kit, M16

Includes ejection port cover, rod, and spring.Features :For Builds or RepairsEjection Port CoverRodSpring

CMMG Gas Tube Kit, Pistol/PDW w/pin

Gas tube for AR15 pistol length gas system. Includes installation roll pin.Features :Stainless SteelPistol LengthFor Builds or Repair

CMMG Gas Tube Kit, Carbine w/pin

Gas tube for AR15 carbine length gas system. Includes installation roll pin.Features :Stainless SteelCarbine LengthFor Builds or Repair

CMMG Gas Tube Kit, Mid-Length w/pin

Gas tube for AR15 mid-length gas system. Includes installation roll pin.Features :Stainless SteelMid-LengthFor Builds or Repair

CMMG Forward Assist Kit AR15/.308

Includes forward assist assembly, spring, and installation pin.Features :For Builds or RepairsForward AssistSpring and Installation Pin

CMMG Gas Tube Kit, Rifle w/pin

Gas tube for AR15 rifle length gas system. Includes installation roll pin.Features :Stainless SteelRifle LengthFor Builds or Repair

Aero Precision AR 308 Upper Parts Kit

Aero Precision upper parts kit includes the parts you need to assemble your M5 (.308) Upper Receiver. Includes: Forward Assist Assembly Forward Assist Spring Forward Assist Roll Pin Ejection Port Cover Door Ejection Port Cover Rod Ejection Port Cover...

Aero Precision .625 Low Profile Black Nitride Gas Block

These gas blocks along with our gas tubes create an efficent and reliable gas system for your AR15 or AR 308 rifle build. Features: Fits barrels with .625 Outer Diameter Constructed from 4140 hardened steel Choose No Aero Logo or Aero "A" Logo...

Aero Precision .936 Low Profile Black Nitride Gas Block

These gas blocks along with our gas tubes create an efficent and reliable gas system for your AR15 or AR 308 rifle build. Features: Fits barrels with .936 Outer Diameter Constructed from 4140 hardened steel Choose No Aero Logo or Aero "A" Logo...