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Tite-Fix RTP
(patent pending)
If you need a hammer to seat your rear takedown pin, the Tite-Fix (patent pending) rear takedown pin is the prescription!
Mil-Spec
If you would like to fix a tight fitting upper to lower receiver combination, while retaining the original appearance of the weapon, we offer a mil-spec version of the Tite-Fix just for you. Nobody will ever see the difference.
Extended
For those who appreciate the ease and speed of extended rear takedown pins, we offer a version of the Tite-Fix made just for you. At 3/8" in length, the aggressively knurled surface provides a positive grip for speedy removal.
How it works!
In this diagram, the black circle represents the takedown pin holes in the lower receiver while the red oval indicates the hole in the rear lug of the upper. When there is a tight fitting combination, the lug in the upper doesn't extend far enough into the lower to align the holes. To remedy this situation, we mill approximately .006" from the bottom of the rear takedown pin, as is illustrated by the green line. This relief allows the Tite-Fix rear takedown pin to slip over the bottom of the elevated hole in the upper receiver lug, and easily enter the hole in the opposite side of the lower receiver.
We milled the Tite-Fix relief cut on a parkerized takedown pin to illustrate how little material is removed, that makes such a huge improvement. All of our pins are heat treated and parkerized after processing. You can go from hammer tight to ever so slightly loose. However, if you would like to remove even that little bit of play, check out our CAM #0 rear takedown pin.
The vast majority of tight receiver fitment is due to the hole in the upper receiver lug not reaching deep enough into the pocket to align with the holes in the lower. This small relief cut on the bottom of the Tite-Fix is all it takes to allow it to glide over the bottom of the out of spec takedown lug of the upper receiver, and slip into the hole in the opposite side of the lower.
RTP Installation Tool Kit
Replacing the rear takedown pin has typically required the removal of the buffer tube, which requires specific tools and knowledge that not all shooters possess. To make it easier, we developed the takedown pin installation tool kit. The detent pick and pin drift allow anybody to replace the rear takedown pin, and/or the front pivot pin with ease.