ASK AN EXPERTDescription
- The 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
Lantac AR Ultimate Takedown Pin Set. The Ultimate Pin Set (UPS) allows the installation and removal of an AR15 pivot pins without the use of a tool. This set comes with takedown and pivot pin, both finished in black nitride, along with 2 KNS detents and 2 steel detent springs. The pins feature aggressively crenulated heads for improved grip, this facilitates easier removal of the pin from the receiver. The unique design incorporates a ramped groove that holds the detent in place when installing and another ramp allows access to the retaining slot. This product is proudly made in Fort Worth Texas, USA.
Warranty Information
| Caliber | .223 Rem, 5.56x45mm |
| Finish / Color | Black, Unfinished |
| Firearm Type | Pistol, Rifle |
| Material | Steel |
| Models Fit | AR-15 |
