03-09-2012, 06:02 AM
Yup. CM901 takes both a 7.62 upper, and a standard 5.56 uppers. I played with it at SHOT. There's a magazine/pivot pin insert that goes inside the 7.62 magwell to accommodate the M4 upper.
The system that went from 5.56 to .30-06 to .338 LM was the Cobb Mfg Modular Weapon System. Bushmaster bought them, and hasn't really done anything with the system that I've seen. They took the Cobb design and called it the BA338. It would make a fun counter-piracy stick, since Lapua does make API rounds for .338 LM.
The OP's question is almost like asking for advice on whether to get a Jeep CJ with muddin' tires, or a Cobra Jet 428 with a tuned engine.
The system that went from 5.56 to .30-06 to .338 LM was the Cobb Mfg Modular Weapon System. Bushmaster bought them, and hasn't really done anything with the system that I've seen. They took the Cobb design and called it the BA338. It would make a fun counter-piracy stick, since Lapua does make API rounds for .338 LM.
The OP's question is almost like asking for advice on whether to get a Jeep CJ with muddin' tires, or a Cobra Jet 428 with a tuned engine.
