Canadian law mandates that semi-automatic shotgun capacity is restricted to 5 rounds of the largest capable shotshell for that shotgun. The Benelli M4 is designed for 2 3/4" inch shells and 3" shells. So, the legal limit is 5 rounds of 3" shells for the Benelli M4. Our Canadian Legal magazine extension tube will allow you to load 6 rounds of 2 3/4" shells into your magazine tube, as per Canadian law.
CNC machined from 4140 steel.
Overall length - 6.5 inches
Once installed, these tubes will fit flush with the end of an 18.5″ barreled Benelli M4 12 gauge shotgun.
Finished product will be Cerakoted; Colour options are:
Unlike most of our other magazine tube extensions, our Benelli M4 magazine extensions do not come with a spring or no-jam follower. The OEM spring that comes with the M4 will function just fine with our magazine extension. If you do happen to require a new spring or follower check SKU: SF-KIT-UNI
Made in Canada.
Compatibility: