The Brownells BRN family of upper receivers continues to grow with the addition of the BRN-9. This 9mm upper joins the 5.56, .300 BLK, and 7.62×39 options which are already available. Let’s take a closer look at what the BRN-9 brings to the table.
Brownells @ TFB:
Like the other BRN uppers, the BRN-9 does not require a buffer tube / receiver extension. This means it can fire with the stock folded. However, it also works on all standard AR lowers and would work with a standard AR stock if that is the user’s preference. As one would expect, the BRN-9 barrel is threaded 1/2×28 for easy suppressor compatibility.
The BRN-9 also feeds from a broad range of magazines. Yes, that includes Glock mags. However, options like the MP-5, Colt SMG, and CZ Scorpion are also on the menu, provided that the lower functions with them.
From the manufacturer:
Machined from- billet 6061 T6 aluminum, black hardcoat anodized
Nitrided 4140 steel bolt
Lightweight Nitrided 4150 steel barrel with 1-10″ rifling & ½-28 tpi muzzle threads
Continuous M1913 Picatinny top rail
M-LOK® slots on bottom & sides of handguard
Compatible with 9mm Glock®, Colt 32-rd SMG, CZ Scorpion, Heckler & Koch MP5, Mean Arms EndoMags & SIG Sauer P320 magazines
Self-contained blowback operating system – NO buffer tube needed!
Non-reciprocating steel charging handle
Compatible with standard “mil-spec” AR-15 or BRN-180 lower receivers
Works with last-round-bolt-hold-open lower receivers
Preserves function of bolt catch
Tapered multi material 4-piece trunnion system to maintain mechanical accuracy & longevity
Rear recoil buffer is 3D-printed from flexible material optimized to absorb recoil impulse
Over-buffer-tower design maximizes rail space
BRN-style brass deflector
Easy toolless takedown
The BRN-9 is in stock as of this writing, with a retail price of $550. You can find it here.
All images via brownells.com
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