This guide provides expert-level instructions from Steve at Brownells on installing the Primary Weapon Systems (PWS) Enhanced Buffer Tube, featuring a ratcheting castle nut and end plate. The PWS system eliminates the need for staking or Loctite, offering a secure and easily removable assembly. The video details the step-by-step process for attaching the buffer tube to an AR-style lower receiver, securing the castle nut, and installing the enhanced buffer, specifically noting its use in a 9mm pistol build.
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