Expo Arms 5.56 NATO Complete M16-Cut AR-15 Bolt Carrier Group - Nitride

This item was an add on option to the Bear Creek Arsenal 16" Mlok 300 AAC Blackout upper assembly I purchased to add functionality to my home built 5.56mm AR. This is a melonited (Nitrided) BCG. After a day at the range, I came home and cleaned the upper. The melonite finish makes cleaning a very easy task. This BCG functioned flawlessly. I'm really impressed with the speed that Primary Arms had the upper with options delivered on my doorstep only 3 days after I ordered it.Great product at a great price. Thanks Primary Arms!

Will update if I have any issues but upon initial inspection this is a very nice BCG. Mine has absolutely no tool maks, the nitride is smooth and looks really nice. BCG is in spec compared to other BCG's I have. I'm happy with this purchase.

Updating my review. I've had this for about 7 months as of 3/06/19. I have about 800 rounds cycled so far with this BCG and I have not had a single malfunction. This is paired with the Bear Creek 7.5 inch nitrided barrel. Again... the machining and finish are perfect. Been recommending this BCG to everyone. Unless you want something really fancy or gotta have a specific logo, I see no benefit in spending more on other brand names when you get the same quality for less.

Everything you would expect from a $200 BCG for less than $100. Over 200 rounds on the first day and zero issues. Will update if it performs less than expected, but I don't foresee any issues.

5k rounds and still strong. Had an extractor shatter but thats not an issue.

Amazing BCG for $100. Build quality is great and works flawlessly. Would definitely recommend this BCG to anyone.

This is a steal. It works well and is perfect for both Wylde and Nato. Quick shipping as always!

Functions just as you’d want it to, it’s a bolt carrier.
Having less than 100 rounds through the new rifle it’s too early to tell.

3-4000 rounds is when a BCG really starts to show it’s worth but so far, so good.

Bought in 2020 for $99 at the time, for the first AR I built. This BCG will do the job. I dropped it in a FN M16A4 upper. normal use I'd say I run 150-300 rounds in a day, in a fairly short period. After over 2,000 rounds the extractor gave up and the gas rings needed replacing. Not a surprise as they are common failure parts, hard use will wear them out eventually. After replacing it was ready to go, no other underlying issue. Great BCG if you're just starting out, or on a budget.

Found this to be on sale ..sure glad that it was very reasonably priced and the sale was just a bonus..great product recommendations for the person looking for good buying experience