Magpul PRS Lite Won’t Fit My BCA AR-10 | Full Magpul Upgrade Fix & Install Guide

Thought the Magpul PRS Lite would drop right onto my Bear Creek AR-10… I was wrong.
Upgrading my Bear Creek Arsenal AR-10 with a Magpul PRS Lite stock and K2+ grip didn’t go as planned… The PRS Lite wouldn’t fit right out of the box on my BCA lower because of a buffer tube notch issue. In this video, I walk through the problem, show how I fixed it with a Dremel and files, and then install both upgrades.

I cover:

Unboxing the PRS Lite and K2+ grip

The PRS Lite stock fitment problem on a Bear Creek AR-10

How I modified the buffer tube for proper fitment

Installing the Magpul K2+ grip (with tips on springs and bolts)

Before and after comparison

Final rifle setup with adjustable length of pull and comb height

Cinematic day and night shots of the upgraded build

If you’re a Bear Creek Arsenal AR-10 owner thinking about Magpul upgrades, this video will save you time and frustration.

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