COLT FIELD REPAIR KIT M4/AR15

Description

Field maintenance on an AR-15 or M4 tends to fail at the small parts — springs that weaken after sustained use, pins that walk under recoil, detents that go missing during a disassembly. This genuine Colt kit addresses exactly that vulnerability by consolidating 19 mil-spec replacement components into a single package sized for a range bag or go-kit.

The contents cover the parts most likely to need replacement during the service life of a lower receiver: hammer and trigger pins, a hammer spring, trigger spring, and disconnect spring for the fire control group; a bolt catch with its roll pin, spring, and plunger; a magazine catch spring; takedown pin with both its detent and spring; fire control selector detent; buffer retainer and buffer retainer spring; ejector and safety detent spring; and a firing pin with its retaining pin. That range of components means a single kit can address most common lower-side malfunctions or wear issues without requiring a parts run mid-session.

Because every part is factory Colt production, they are built to the same drawings used in Colt’s own rifles — dimensionally consistent with standard mil-spec lowers and compatible with the full range of AR-15 and M4 pattern rifles. For anyone who runs Colt rifles regularly, keeping one of these on hand is straightforward preventive practice rather than a reaction to a problem.