EASIEST Castle Nut/Endplate Set On the Market by PWS: Ratchet Lock!Shop Here
The PWS Ratchet Lock system is the easiest and most secure method of assembly for the home builder without much in the way of tooling. The Ratchet Lock system provides secure mounting of your receiver extension tube with Primary Weapons System's proprietary Ratchet Lock End Plate and Castle Nut set. Designed to work exclusively together, the Ratchet Lock system secures the Castle Nut by simple means of the spring loaded detent built into the End Plate. If you don't have a lot of tooling, need to assemble several lowers quickly, or are helping a friend put together their first build -- the Ratchet Lock system is one of -- if not the best selling combo set on the market.
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