Fixed length for commercial spec sized carbine receiver extension tubes not included from manufacturers such as Bushmaster, DPMS, and others.
Has a slim profile, improved cheek weld, and multiple sling attachment options
Compatible with ASAP Plates and PRS Extended Rubber Butt Pad
Installation is non armorer and does not require the castle nut or lock plate to be removed. Commercial Spec Length , 7.25 Receiver extension buffer tube outer diameter width , 1.168 Back of tube has 5 degree slant 1 3 16 16 UN threads have truncated flat peaks. Note If you have a mil spec size extension buffer tube on your rifle
12.2 length of pull Integrated 1.25 sling loops Durable polymer construction Made in U.S.A.