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AR-15 6.5 GRENDEL NITRIDE MP

AR-15 6.5 GRENDEL NITRIDE MP Reviews & Ratings

The Brownells M16 6.5 Grendel Complete 9310 Bolt Assembly is built to withstand heavy-duty use in both semi-auto AR-15s and full-auto M16 rifles and features construction and testing that ensures high-quality performance. The Brownells M16 6.5 Grendel Bolt Assembly is constructed entirely from 9310 steel, which is designed to provide the elements needed to perform during rugged duty use.

  • Material quality checked with magnetic-particle inspection
  • Extractor includes spring and rubber insert
  • Type II

The Brownells M16 6.5 Grendel Bolt Assembly includes bolt, gas rings, extractor and ejector installed.

See all of our AR15s and AR15 parts here.

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5 Stars
91%
4 Stars
9%
3 Stars
0%
2 Stars
0%
1 Stars
0%
Reviews Summary
Overall, customers are satisfied with the AR-15 6.5 Grendel nitride bolt, noting its quality and performance, especially at a good price point. However, some concerns about shipping delays and inconsistent quality were mentioned, with a few customers disappointed in the bolt's headspacing accuracy. Despite these issues, many recommend the product.
What Reviewers Are Saying
Product Quality
70%
Several reviewers praised the quality and performance of the bolt, stating it works as intended and is a valuable addition to their setup. Most feedback highlights the satisfactory experience with the product's functionality.
Pricing
50%
Numerous customers express that the bolt offers good value for money, with many highlighting its affordability without compromising on quality. This theme emphasizes a positive perception of the pricing.
Shipping Experience
25%
A few reviewers noted shipping issues, particularly with USPS causing delays. While some received their product promptly, others experienced frustrating back-and-forth shipping, suggesting that shipping speed could be improved.
Headspacing Concerns
15%
Some reviews touch on issues related to headspacing, specifically comparing the Brownell's bolt with others. One reviewer expressed concern about the accuracy of the headspace on their bolt, indicating that quality control may be inconsistent.
Customer Support & Availability
40%
Customers appreciate the efficient and fast shipping from the seller. The availability of back-in-stock notifications was also praised, as it enabled timely purchasing of the product.
5
BCG carrier enhancement
Bought it to improve a budget friendly BCG not known for using higher end alloys ! The bolt is what counts.
Would you recommend this? Yes, I would recommend to a friend
by SAMUEL LEE on May 13, 2026
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5
Bolt
I had to replace a bolt and sean this from Brownells and got it they shipped it fast and it worked great. I highly recommend them.
by WILLIAM FISCHER on November 19, 2025
Verified Purchase
Was this review helpful? 1
5
Parts
Good products good price
by DONALD BOWEN on September 21, 2025
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5
Perfect replacement or spare!
Nice Quality Item as always from Brownell's and great price!
by ARTHUR D IWAMI on July 28, 2025
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5
Looking forward to pig hunting
Looks good, signed up for back in stock notification and was able to purchase 3 weeks later. The first back in stock notification sold out before I read my back in stock email.
Would you recommend this? Yes, I would recommend to a friend
by William Johnson on December 30, 2024
Verified Purchase
Was this review helpful? 1
5
6.5 Grendal bolt
Just what I needed. Looked hi and low for a bolt for my Grendal and found it. And it didn’t break the bank. Performed great.
by Neal LaCour on December 01, 2024
Verified Purchase
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5
Very good bolt.
6.5 Grendel Bolt fits in carrier and works very well.
Would you recommend this? Yes, I would recommend to a friend
by David Bailey on October 28, 2024
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5
answer
good quality
by KEN RICE on May 08, 2024
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5
Outstanding
Slapped it in the carrier and shot away worked just as intended.
by JAMES HEAKIN on April 14, 2024
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5
It's OK
I bought this as a backup bolt for my Grendel. I was not too happy with the bolt that came with it. I bought a Toolcraft Nitride bolt as a backup. It headspaced as it should, Go, NoGo, Field. I swapped out the Toolcraft bolt for the Brownell's. The Brownell's headspaced at Go-Go, NoGo-Go and Field-No-Go. Not so sure about this one.
by Marc Coppock on March 14, 2024
Verified Purchase
Was this review helpful? 1