Rock River Arms Begin Shipping BT-9 9mm Series

Colona, Illinois-based Rock River Arms have begun shipping their new series of AR pistol calibre carbines. The Rock River Arms BT-9 comes in three configurations; two pistols with 7 inch and 10.5 inch barrels and a rifle with a 16 inch barrel. Yes, they take Glock mags.

10.5 INCH PISTOL WITH SBA3 ARM BRACE BT-9 9X19MM (Rock River Arms)

Here’s what Rock River Arms’ have to say about the BT-9s:

Rock River Arms, one of the industry’s most respected names in Modern Sporting Rifles and pistols, is now shipping a new series of semi-autos chambered in 9x19mm. Designed to work with GLOCK® style magazines for optimal cross-compatibility with GLOCK back-up carry pistols, the BT-9 series takes shooting fun and personal defense systems to new levels.

The BT-9 models are based on RRA’s billet aluminum lower receiver with a GLOCK-compatible flared magazine well. Integral to the lower receiver is a unique winter-style trigger guard that offers comfortable room for the trigger finger when wearing tactical or cold-weather gloves. Also, a common feature to all BT-9 models is RRA’s latest extruded aluminum upper receiver. The pistols are standard with RRA Lightweight Free-Float M-LOK-compatible handguards.

R9 COMPETITION BT-9 9X19MM

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Originally posted on The Firearm Blog