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10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
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BROWNELLS - 10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel

6 Reviews
10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel
Brownells #
080001358
MFR #
BN-15A1016N10NLQ
UPC
050806000445
$149.99
Coupon Code
Purchase Limit Help

In stock

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Specifications
Cartridge:
10mm Auto
Twist:
1-16
Barrel Contour:
Medium
Barrel Length:
10.50
Gas System Length:
NA
Color:
Black
Item Length (Inches):
10.500
Muzzle Threads:
5/8"x24
Restriction
Threaded Barrel Restriction:
Yes
Prop 65 restriction:
WARNING: This product may contain chemicals known to the state of california to cause cancer and birth defects or other reproductive harm
View US State Restrictions
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What is the BROWNELLS - 10MM Auto Barrel 10.5" 1-16 Twist 4150 Steel?

AR-15 1MM AUTO BARRELS 4150 STEEL

The Brownells 10mm Auto AR-15 barrel allows fans of the powerhouse 10mm cartridge to built an AR-style carbine or pistol chambered in their favorite pistol round, enhancing its usability with a new platform. The Brownells 10mm Auto AR-15 barrel is machined from triple stress-relieved 4150 steel, which features a nitride coating for added strength. Each barrel comes equipped with 360-degree feed ramps and a hand-polished chamber that ensures reliable extraction.

  • Features 1:16 rate of twist
  • Designed to work with any blowback .40 S&W bolt-carrier group
  • Features 11-degree target crown
  • Includes threaded muzzle with 5/8x24 TPI thread pitch

The Brownells 10mm Auto AR-15 barrel is completely made in the USA and will require the use of an extra-heavy AR buffer for reliable operation.

See all of our AR15s and AR15 parts here.

Threaded Barrel Restriction: 
Threaded Barrels have restricted shipping to CA.

Prop 65WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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AR-15 10MM AUTO BARRELS 4150 STEEL REVIEWS

4.5
6 Reviews
5 Stars
83%
4 Stars
0%
3 Stars
0%
2 Stars
17%
1 Stars
0%
Reviews Summary
Users of the AR-15 10MM AUTO BARRELS 4150 STEEL generally enjoy its performance, highlighting accuracy and consistency, along with ease of installation and a robust build. However, a few reviews noted issues with chambers and feed reliability, suggesting it may require specific adjustments for optimal performance.
What Reviewers Are Saying
Product Performance
70%
Many reviews praise the accuracy and fun shooting experience provided by the barrel, with users reporting successful hits on targets at impressive distances, such as 200 yards. The general sentiment is that the barrel enhances shooting enjoyment, resulting in tight groupings.
Installation and Build Quality
60%
Reviewers frequently express satisfaction with the build quality of the barrel, noting its fit and finish as excellent. Many found installation straightforward, which is a significant advantage for customers looking for ease of assembly.
Reliability Issues
30%
Despite positive experiences from many users, some encountered issues with the barrel's ability to consistently chamber rounds. Problems with the feed ramp leading to jams were highlighted in a few reviews, indicating potential quality control concerns for certain units.
Value for Money
50%
Several customers reflect on the cost-effectiveness of the barrel, asserting that it provides good value considering its quality and performance. This aspect is particularly appreciated among those building their own AR-15 setups.
User Guidance and Experience Sharing
40%
A number of reviewers offered tips and advice on optimizing the barrel's performance, sharing insights regarding springs and ammunition compatibility. This communal knowledge contributes positively to user confidence and successful builds.
5
Awesome Barrel
I love shooting the 10mm on an AR-15 PCC platform. It's a lot of fun to shoot. This barrel—I picked one up a while ago and built out the upper—shoots so well. I built a couple more, and they all were tack drivers. I was shooting steel at 200 yards, hitting a 4" steel disk.... It shoots well.
Would you recommend this? Yes, I would recommend to a friend
5
Good Barrel
I'm running a lower priced FM lower that takes Glock mags, Kaw BCG, Kaw 10oz buffer and heavy spring. I have been running this for a year now and I have been very fortunate to not have any feed issues! I get real nice groups at 50 yards with the Buffalo Bore 180gr. I have had pretty good grouping with my hand loads but I'm still playing. I am using a red dot so I'm sure with a scope I could squeeze some tighter groups out of this if I tried. Oh and mine chucks the empties about 10-15 yards so don't have anyone to your right!
5
Very nice
Here's how to make a blowback 10mm work properly. Mine runs super hot Underwood ammo perfectly fine, 140gr at ~1730 FPS! Also runs weaker plinking ammo fine. -Tubb AR15 Flat Wire Buffer Spring, other springs use too much force when chambering a round, and the bullet gets stuck. Tubb spring works great. -12 ounce buffer from heavybuffers . com (heaviest I could find) - Quarter Circle 10 .40/10mm BCG with the weight inside it. Hope this helps! Was a tricky rifle to get 'right.'
5
Exactly as it should be.
The fit, and finish of this barrel is exactly as it should be. The barrel was everything they said it was. Very happy with my purchase.
5
Flawless
Barrel is great. No flaws in design, or finish. Didn't have to do any smithing to it. Ran herters 180 grains from bass pro which is bum ammo. This is the best barrel you will find for the price.
Customer Questions
7 Questions