This page requires that you activate javascript in your browser settings.
However, a non javascript version of the site is available here

JP Tension Pin


Finally, the right fix for the “loose” upper/lower receiver problem. You can throw out that piece of rubber you’ve been stuffing under your rear take-down pin all these years. All it’s good for is eliminating the “rattle” in your gun. In reality, it does just the opposite of what it should. It pushes the receiver halves apart on a flexible interface. They still move when the gun discharges. The JP Precision Tensioning Pin actually pulls the whole upper assembly down and back on the lower with reproducible torque (for those really picky folks) and gives a rock hard fit to even the sloppiest receivers. Ask any bolt gun shooter, and they will tell you that a rifle loose in the stock will most likely not reach its accuracy potential. An AR with a loose upper/lower is no different. It requires no modification to the receiver. It simply replaces your rear push pin and drops right in.

A must for the “accurate” rifle!


Small Parts and Components
JPTP-1JP AR Tension Pin for Standard Rifle$34.95
JPTP-2JP Tension Pin for .308 Versions$39.95
JPFC-SJP Adjustable Reversable Selector for M15 rifles$49.95
JPFC-SL1JP Extra Lever and Screw for JP Safety Selector Allowing for Ambidextrous Use$17.95
DPLR-08BM15 Ambi Safety Sselector$29.95
DPLR-OS2Offset Adapter Front Pivot Pin$5.95
BO-TLBadger Ordnance Tactical Latch$18.95
CHBRM15 Chamber Brush$2.95