Diamondback Firearms 7.62x39mm AR-15 Carbine Barrel Nitride - 10"

Manufactured by Diamondback Firearms
SKU: 7.62X39C10M50B9.5
MPN: 7.62X39C10M50B9.5
Manufactured by Diamondback Firearms
4 Reviews

In Stock

Standard orders will be shipped within the same business day. FFL orders will ship within 2 business days or less as long as we have the information for the transfer destination. Priority shipping methods like Overnight Delivery, Air Delivery, 2nd Day Delivery, or 3 Day delivery do not include Saturday or Sunday as delivery days.



The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16” long. Know the NFA laws in your state before purchasing this item.

The Diamondback Firearms 7.62x39mm AR-15 Carbine Barrel is machined in house on state-of-the-art CNC machines and are thoroughly inspected at multiple stages of the build process to ensure quality. This 10” barrel is machined from 4150 Chrome Moly Vanadium Steel and is 6 groove button rifled to ensure consistent accuracy and has a 1:9.5 twist rate. The carbine length gas system is optimal for reliability with a short 7.62x39mm barrel. It is threaded 5/8x24 and features an 11 degree target crown. The final process is a salt bath Nitride finish for an added layer of protection.


  • 10” barrel chambered in 7.62x39mm
  • Machined from 4150 CMV steel
  • Salt Bath Nitride finish
  • Carbine length gas system
  • 1:9.5 twist rate
  • 6 groove button rifled
  • 11 degree target crown
  • Threaded 5/8x24
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Barrel CoatingSalt Bath Nitride
Barrel ContourMedium
Barrel Length10
Barrel Material4150 Chrome Moly Steel
BrandDiamondback Firearms
Caliber Gauge7.62X39mm
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern5/8 X 24
Twist Rate1:9.5

Ratings & Reviews

4 reviews

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  • 1 star
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Not impressed

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Build data:
<br>Bear Creek side charging upper and BCG, Anderson lower with PSA EPT trigger, KAK shockwave buffer tube kit with a Strike Industries brace/blade, C-products 28rd 7.62x39 mags.
<br>The good:
<br>It's a fairly accurate barrel (1" groups at 50 yds). No failures to feed, fire or eject out of multiple C-products mags with Tula 122gr FMJ.
<br>The bad:
<br>It's a jam-o-matic with the Tula 124gr 8M3 HPs. It looks like the bottom lip of the HP is getting caught on the feed ramp as it chambers. Presentation angle from the magazine looks good, so it appears to be a problem with how the ramp and the HP tip are interacting. It occurs primarily with the right feed ramp (viewed from the butt).
<br>I haven't had the chance to try SPs or other brands of HPs . I'm bummed that it doesn't like the primary ammo I hoard for my AK. It's hard for me to recommend it if it doesn't feed everything that it's presented with. Maybe the problem lies elsewhere, but doesn't look like it. YMMV.

Very impressed


Really impressed with this barrel also has nice twist rate and does not malfunction!

Very impressed


Great barrel does not malfunction and nice twist rate !

Good value, surprisingly accurate


Built an upper using this barrel just before the start of rona, luckily I've been able to get my hands on ammo the whole time. I've had no issues with reliability, or feeding many different types of ammunition. The nitriding on this barrel is remarkably even and nice, and ridiculously hard. At ~90 yards it's shooting a 1 inch ish hole, which is better than was expected. It loves and I mean LOVES wolf and tula 122 grain steel case