Classic Army CA P029M Airsoft M4 Metal Magazine 300rd High Capacity - Dark Earth Tactical Vests & Accessories The Shaft FR back assembles

The Shaft FR back assembles in a unique manner so that the ball is guided into the Insert via a tapered opening at the rear

removable front grip to accept expansion chamber and vertical kits

accuracy and

This model also is very close to the ECHO 1 ASR for much less then the name brand and brings the same level of performance

Classic Army CA P029M Airsoft M4 Metal Magazine 300rd High Capacity - Dark Earth Tactical Vests & Accessories The Shaft FR back assemblesThis Classic Army metal magazine for M4 has a capacity of 300rds. To load, open the top magazine hatch, pour in the BBs, close the hatch, and then wind the spur wheel at the bottom of the magazine to provide the internal spring with tension.