Colt Parts

Factory Colt carbine buffer action spring for M4/AR15 type rifles.

Factory Colt receiver extension castle nut for M4/AR15 type rifles.

The Magpul MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the...

The Accu-Wedge will improve fit and eliminate the wobble between the upper and lower of your AR15/M4/M16 type rifle. This drop-in parts helps promote improved accuracy and allows the user to shoot tighter groups. The small wedge-shaped part is molded of...

Factory Colt operators manual for the 6940 series of Advanced Carbine Monolithic rifles.

The Colt LE6960-CCU-CK Upper Receiver Assembly is used on the LE6960-CCU Colt Combat Unit Rifle. A modern design featuring a 13” Centurion Arms slim profile, M-LOK, free float handguard (part #ML130EM), around a 16.1” lightweight profile,...

The factory Colt 901 magazine adapter block conversion kit allows you to install any mil-spec AR15/M4 upper receiver and use mil-spec AR15/M4 magazines with your Colt 901 lower receiver. Includes magazine adapter block, buffer and spring.

Factory Colt semi-auto trigger spring for M4/M5/AR15 series of rifles.

Factory Colt safety and instruction manual for semi-automatic AR15 rifles.

Factory Colt rifle buffer action spring for AR15/M16 type rifles.

Factory Colt carbine collapsible stock assembly for M4/AR15 type rifles.

Factory Colt upper receiver assembly to build your AR15, M16 or M4. Compatible with all mil-spec AR15/M4/M16 lower receivers. Includes forward assist assembly, and ejection port cover. Manufactured to truly meet and exceed all Mil Spec standards.