UPS™ Ultimate Pin Sets are now available for Preorder...
Precision machined on Swiss style turning centers our Ultimate Takedown Pin sets are manufactured from the highest quality materials to the highest standards. They ship complete with our 3D printed rear pin removal tool (RTT™). The Patent Pending UPS™ (Ultimate Pin Set) allows the user to install and remove an AR15 Pivot Pin without the use of a tool. The unique design incorporates a ramped groove that holds the detent in place at the time of installation and another ramp allows access to the retaining slot at 90° to groove. Pins feature Patent Pending aggressively crenulated heads for improved grip, this facilitates easier removal of the pin from the receiver. The rear pin features the same retaining slot and ramp, meaning that it can be removed easily by sliding it to a halfway position and then rotating. This causes the takedown detent to ride up the ramp and onto the outer surface of the pin, making remove extremely simple. QUICKSAFE™ Our UPS™ Pin system has a built in safety feature that can be utilized by anyone wanting to make it difficult for an Upper Receiver to be fitted to a Lower Receiver. To render a lower receiver inoperable the user can quickly remove the front Pivot Pin (Spring & Detent) and insert it through the rear Takedown pin hole from the other side of the receiver. Then remove the rear Takedown and allow the Pivot Pin to retain its detent. If the pin is rotated so that the detent registers with the groove on its end then it becomes impossible to remove the pin without removing the castle nut and end plate. It is now impossible to mount an upper receiver group to the lower and have a functioning assembly. Pins are manufactured from 17-4PH stainless steel in H900 condition and then QPQ Nitride finished.
Specification: Material: 17-4PH Stainless Steel, H900 Condition Finish: QPQ Nitride Black. Weight: Pivot Pin: .25oz, Takedown: .20oz Manufactured in the USA.
Available in Grade5 Titanium too.
https://casinonederlanden.com is where I usually skim deals, so the release angle caught my eye, but the QUICKSAFE setup was the real takeaway: swapping the front pivot pin through the rear takedown hole and rotating it so the detent registers with the groove makes the lower effectively unusable until the castle nut and end plate come off. I’d want to test that on a spare lower first, since it sounds clever but also like something easy to forget under time pressure.
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The patent-pending design of the Ultimate Takedown Pin sets sounds revolutionary! The ramped groove that holds the detent securely during installation seems like a game changer for AR15 enthusiasts. I'm always looking for ways to enhance my setup and simplify maintenance, especially since I often find myself working on projects late at night. Speaking of optimizing experiences, I recently discovered my Social Battery type, which helps me understand how to recharge my energy while engaging with others. You can learn more about it at SBTI Match.
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