Originally Posted by
Robb Jensen
For the M4 carbine, Things I would change:
1. Use a 16" barrel, 1x8 twist midlength cold hammer forged 11595-E steel barrel.
2. Crane LMT/KAC SOPMOD or VLTOR E-Mod stock to replace M4 stock both are stronger and better than the M4 stock.
3. KAC E3 style barrel extension and KAC style E3 bolt. Both have proven to last at least 4-5 times longer than Colt style AR/M4 bolts.
4. Standard charging handle replaced with Type 4 or 5 BCM/VLTOR Gunfighter charging handles.
5. CAR receiver extensions replaced with VLTOR A5 extensions and VLTOR 5oz standard A5 buffers. Buffer springs would share the same part number as the M16A2, A3 and A4 buffer springs.
6. Finish on gas tubes, barrel extensions, carrier keys, bolt carriers, cam pins, ejectors, extractors & extractor and ejector pins, firing pins, hammers, triggers and disconnectors, safety/selectors, take down pin detents, safety/selectors detents and interior of inner of metal magazines and the inner and outer surfaces of upper and lower receivers replaced with a nickel boron finish.