Model 1 .22LR Pistol Lower Reciever End Cap
For use with .22LR pistol lower receivers ONLY. Not for use with ANY other caliber. Placing this end cap on any other caliber AR WILL cause catastrophic failure that can lead to injury or death
This .22LR Lower Receiver Endcap takes the place of your buffer tube, end plate and castle nut for your 22 LR build only. To utilize the end cap, the hole for the rear takedown pin spring and detent will need tapped with a 4-40 tap. The correct size set screw will be 4-40 x 1/8" to keep tension on the detent and spring.
Most AR's chambered in 22LR do not need a buffer tube because the action is contained within the carrier assembly. because of this you can remove the unnecessary parts for a more compact 22LR pistol build.
Before installing this part, make sure that your .22LR bolt carrier assembly does not utilize the space within the buffer tube. This .22LR end cap should only be installed by a certified gunsmith.