Choate Tool T/C G-2 M-4 Pistol Grip OnlyMulti Calibers. This does not include the stock or buffer tube. All NFA Rules apply. Federal law prohibits use with barrels shorter than 16 inches with buffer tube & stock attached. Specifications for Choate Tool T/C G-2 M-4 Pistol Grip Only: Manufacturer: Choate Tool Gun Make: Thompson/Center Arms Gun Model: M4 Condition: New Country of Origin: USA Features of Choate Tool T/C G-2 M-4 Pistol Grip Only Use AR buffer tubes and butt stocks. Integral pistol grip. Package Contents: Choate Tool T/C G-2 M-4 Pistol Grip Only What firearm models does the manufacturer say Choate Tool T/C G-2 M-4 Pistol Grip Only is compatible with? The manufacturer says that Choate Tool T/C G-2 M-4 Pistol Grip Only is compatible with M4Choate Tool CMT-09-03-13: T/C G-2 M-4 Pistol Grip OnlyMulti Calibers