Receiver Extension Casing Method of Use

A gun reinforcement comprising:

• a one or more casings between a buttstock and a castle nut of a gun;
• said one or more casings slide around a buffer tube of said gun;
• said one or more casings cover a portion of said buffer tube;
• said one or more casings have a first end and second end;
• said first end of said one or more casings abut a portion of said gun;
• said second end of said one or more casings abut said buttstock each of said one or more casings comprise a top portion and a bottom portion;
• said buffer tube comprises a tube portion and a buffer tube track;
• said top portion of said one or more casings wraps around a portion of said tube portion;
• said bottom portion of said one or more casings wraps around a portion of said buffer tube track;
• said bottom portion comprises a flange;
• said flange abuts an end plate of said gun below said castle nut;
• said bottom portion comprises a pin aperture;
• said pin aperture receives a strap pin;
• said strap pin attaches to a strap;
• said one or more casings is made of plastic;
• said one or more casing comprises a one or more gaskets;
• said one or more gaskets fit between said one or more casing and portions of said gun;
• said buttstock selectively slides along said buffer tube between a collapsed length, a first extended length, a second extended length, a third extended length, a fourth extended length, a fifth extended length, and a sixth extended length;
• as said buttstock selectively slides along said buffer tube;
• an exposed buffer tube of said buffer tube is exposed;
• said exposed buffer tube comprises a first exposed buffer tube length;
• a second exposed buffer tube length;
• a third exposed buffer tube length;
• a fourth exposed buffer tube length;
• a fifth exposed buffer tube length;
• a sixth exposed buffer tube length;
• a one of said one or more casings comprising a length equal to said exposed buffer tube;
• and,
• said one or more casings comprise
• a first casing having a first casing length equal to said first exposed buffer tube length;
• a second casing having a second casing length equal to said second exposed buffer tube length;
• a third casing having a third casing length equal to said third exposed buffer tube length;
• a fourth casing having a fourth casing length equal to said fourth exposed buffer tube length;
• a fifth casing having a fifth casing length equal to said fifth exposed buffer tube length.