For the Benelli M4 enthusiast who desires additional capacity over and above the capacity offered on a stock Benelli M4, FFT offers the full length replacement magazine tube in premium steel. The FFT full length steel magazine tube is manufactured with one-piece construction for strength and durability. The full length steel magazine tube is designed to replace the original magazine tube and "limiter" that Benelli installs on every civilian M4 tactical shotgun. Adding this magazine tube changes the magazine capacity on your Benelli M4 from a 5+1 capacity (5 shells in the magazine, one in the receiver) to a 7+1 capacity (7 shells in the magazine, one in the receiver).

All full length steel magazine tubes are made in the United States, and are therefore compliant with 922(r). For good measure, every full length magazine tube manufactured by FFT is stamped "Made in USA." 

Increase Benelli M4 Tactical Shotgun Magazine Capacity and Maintain 922(r) Compliance