Choate Tool Benelli M-4 +2 Extension Matte12 Gauge. These kits are constructed of solid steel and come with long spring. Sandblasted Matte blued finish. Use your factory follower does not come with follower. Specifications for Choate Tool Benelli M-4 +2 Extension Matte: Manufacturer: Choate Tool Finish: Matte (Parkerized) Magazine Capacity: 2 Round Gun Make: Benelli Gun Model: Benelli M4 Caliber: 12 Gauge Condition: New Country of Origin: USA Features of Choate Tool Benelli M-4 +2 Extension Matte Benelli M-4 +2 Ext Matte Package Contents: Choate Tool Benelli M-4 +2 Extension Matte What firearm models does the manufacturer say Choate Tool Benelli M-4 +2 Extension Matte is compatible with? The manufacturer says that Choate Tool Benelli M-4 +2 Extension Matte is compatible with Benelli M4Choate Tool CMT-21-04-52: Benelli M-4 +2 Extension Matte12 Gauge