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Almost perfect
Very well made, I like the fact that it doesn’t change the spring rate of spring as much as every other buffer spacer I’ve seen 3/4. My only criticism is for flat wire springs the fit is EXTREMELY tight.I got mine to fit but design could be improved by taking 2-3mm off the diameter where the spring goes around. All my standard springs fit perfectly. This was used in Psa arv 9mm to shorten factory bolt over travel.brought it perfectly into the correct spec for my blowback ar build.
Pros:
- Minimal unwanted spring rate change
Cons:
- Does not fit flat wire springs
Best Used for:
- Shortening bolt over travel in pcc and similar builds
Would recommend: Yes