JP AR-15 Silent Capture Spring GEN 2

GEN 2 Silent Captured Spring (patented) for AR-15-type rifles

Standard Version

Includes spacer to allow for installation in both carbine- and rifle-length buffer tubes.

Compatibility

The JPSCS2-15 will not function with older Primary Weapon Systems (PWS) bolt carriers. The design of the carrier will prevent the rifle from cycling.

http://www.jprifles.com/document_pdfs/JPSCS2_658.pdf