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Your cart is empty.Nut thread 1-3/16x16 TPI Made of Steel QPQ finish. OD 34.5mm Highth 10mm 2 symmetrical gap for tighten easy.
Blake G.
Reviewed in the United States on March 7, 2025
I was needing something to keep my buffer tube from moving because I was not able to screw it into the AK pistol brace attachment completely so Chat GPT recommended I should give one of these a try. Well it worked perfectly. Good deal guys!
Customer Reviews
Reviewed in the United States on March 4, 2025
Presma - Nut, 1-3/16x16 TPI, QPQ Finish, Made of Steel.This item is typically referred to as a castle nut, and used to tighten and secure a threaded "receiver extension" AKA "Buffer Tube" on an AR style receiver. This little nut does the job. It is precisely made, engages with a castle nut spanner/wrench, and includes cuts for properly "staking" to the receiver end plate if desired. The threads fit perfectly to a Mil-Spec buffer tube, Finish appears to be parkerized. It is a simple little item, but does its intended job perfectly. If you work on, or maintain, or customize your fire arm, these are a good item to have a spare on hand.
M. Boyd
Reviewed in the United States on March 14, 2025
Perfect fit on a Mil-spec tube. It was exactly what I needed for one of my builds.
Mike K.
Reviewed in the United States on February 10, 2025
This was a good replacement fit for a PSA AR-15.
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