BCM's USGI Taper Pins to secure the front sight base to the barrel on a M16 Rifle or M4 Carbine.

Delta Ring Assembly for your AR15, M16, M4.
This assembly includes 3 parts:  Delta Ring, Weld Spring, and Snap Ring

Front Sling Swivel for your front sight base for AR15, M16, M4.

Barrel nut for your AR15, M16, M4.

Handguard Cap for your AR15, M16, M4. Round caps are typically used on barrels with a standard carbine length gas system.

For .625 Diameter Barrel

Handguard Cap for your AR15, M16, M4. Round caps are typically used on barrels with a standard carbine length gas system.

For .750 Diameter Barrel

Handguard Cap for your AR15, M16, M4. Round caps (notched for mounting of the M203) are typically used on M4 barrels with a standard carbine length gas system.

For .750 Diameter Barrel

Handguard Cap for your AR15, M16, M4. Triangle are typically used on AR15 barrels with a mid length or rifle length gas system.

For .625 Diameter Barrel

Handguard Cap for your AR15, M16, M4. Triangle are typically used on AR15 barrels with a mid length or rifle length gas system.

For .750 Diameter Barrel

Barrel extention machined with M4 feedramps.

Rivet for Front Sling Swivel for your front sight base for AR15, M16, M4.  Requires special tool for installation.