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Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit
$20.00 $17.00 Save 15%
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LyingProphet's Review of Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit

Tried popping these into an 8920 milspec carrier as part of my 300 AAC build. The cam pin and firing pin went in as expected but the cotter pin was incredibly fussy. Tried just about everything short of hammering it in to get it to fit. Still wouldn't budge.

Swapped out the cotter pin to a different carrier and it refused to get set in place. Tried using a BCM cotter pin with the Obsidian Arms firing pin in the new BCG - didn't work.

In frustration, I removed the Obsidian Arms components and replaced them with identifiably milspec BCM equivalents. Worked like a charm. While a mildly fascinating exploration in more affordably priced parts from an unknown brand, they are functionally useless.
Pros:
  • Affordable
Cons:
  • Grossly out of spec
Best Used for:
  • being returned
Would Recommend: No
0 of 5 found the following review helpful.
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