This guide details the process of converting the Colt LE-901 modular rifle from its native caliber to function with 5.56 NATO uppers. It involves using a specific magazine well adapter and front pin to ensure compatibility with standard AR-15 components and magazines, allowing for seamless caliber changes.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
