Magpul CTR Carbine Stock Commercial Version

The CTR is designed to be a drop in replacement carbine stock body. Adjustable for length of pull. This stock features a unique locking mech that friction locks the stock to the buffer tube for zero movement. Mounts on standard AR15 Commercial carbine tubes. Commercial CTR includes spacer butt-pad. Note: There are two types of buffer tubes (receiver extensions) in common use: Mil-Spec 1.14" OD and Commercial 1.17 OD. If you have a Mil-Spec buffer tube on your rifle, make sure you order the Mil-Spec CTR, stock number MAG310. LOP Adjust= 3.3 inch