Reviews & Ratings for Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit

Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit

$20.00 $19.99

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Most Helpful Positive Review Great quality.

I bought this kit to have a spare for my "AR14" rifles. These parts are well made and chrome plating was top notch. I would not hesitate to buy again. I checked all the dimensions and all were in spec. Great buy �

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Obsidian Arms Enhanced BCG pin kit

by Sterling Rudellat, Verified Owner from TX, United States Written on May 2, 2026

Made solid nice finish, fits like it’s supposed to. Definite bang for your buck

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bcg pin kit

by Sterling Rudellat, from TX, United States Written on April 24, 2026

Happy with the purchase, fit good, looking forward to getting on the range

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be prepared

by Tommy Ashe, Verified Owner from VA, United States Written on September 26, 2025

great product!! A must have in your rang e bag and on your work bench!

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Excellent upgrade

by Jay, Verified Owner from OR, United States Written on November 5, 2024

Really happy with these parts. Exactly what I expected.

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AR Bolt Carrier kit

by Nate, from TN, United States Written on September 27, 2024

This seems to be a good product works fine no slop works as intended.

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BCG upgrade parts

by Aaron, Verified Owner from FL, United States Written on August 7, 2024

Nice chrome plated cam pin and firing pin. Oe pieces were wearing. Cam pin had grooves worn pretty bad. Cheap insurance to buy a more durable part! Should replace BCA pieces right out of the box. Ask me how a firing gets all grooved up after like 100 rds...

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AR 15 firing pin and cam pin

by Dharris, Verified Owner from KY, United States Written on February 20, 2024

These are high quality parts and optics planet offer them at a really good price. If you need to replace or just get to have as a backup I highly recommend this kit.

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Enhance your BCG.

by OGB, Verified Owner from FL, United States Written on September 17, 2023

I used this set to upgrade and enhance my old and worn-out BCG. Parts are mil-spec and fit perfectly. Finish is nice and smooth. Highly recommended for an upgrade for a standard BCG or for a new budget build.

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Milspec- or "How I Learned to Stop Worrying And Love Quality Components from BCM, Colt, or ST"

by LyingProphet, Verified Owner from FL, United States Written on July 2, 2023

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

0 of 6 found the following review helpful.

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7.63x39 Capable

by ChuckwagEn63, Verified Owner from WA, United States Written on February 28, 2023

Fired off every single Norma 124gr brass, Tula and Wolf steel case cartridge. Each primer had consistent strikes and im very pleased. This works for the 7.62x39. 100%. Dont think, buy it. Stay Rad, Stay safe. ��

5 of 5 found the following review helpful.

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Reviews & Ratings for Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit — 14 reviews — Page 1