First Shots: Rock River Arms BT-2 ATR Ambidextrous Tactical Rifle

The fully ambidextrous controls appeal to right or left-handed shooters.

posted on January 24, 2024

Rock River Arms (RRA) is introducing the new BT-2 ATR rifle chambered in 5.56 NATO. This is ambidextrous carbine incorporates upgraded components to give both left- and right-hand shooters the best possible. The BT-2 ATR starts with RRA’s new BT-2 upper and lower receivers. Made from 7075-T6 billet aluminum, these precision-machined receivers have the strength and rugged performance needed in a purpose-built defensive carbine.

The Radian Raptor charging handle can be released by pulling either the left or right handle, allowing single-finger or palming action to charge the firearm with either hand. Additionally, texturing along the handles ensures no-slip operation from the strong or support side, even when wearing gloves.

Second, the all-new BT-2 billet lower receiver is machined for ambidextrous bolt catch/release and magazine release systems. With these systems, the shooter can place the bolt catch/release and magazine release button on either the left- or right-hand side of the receiver.

Third, the BT-2 ATR comes with an ambidextrous safety selector switch. With the lever positioned on both sides of the receiver, the shooter can easily switch between “fire” and “safe” from the left- or right-hand shooting position.

Accuracy is enhanced by the inclusion of RRA’s proven two-stage Ultra Match trigger group. Wire EDM cut for precision, this trigger offers a crisp, clean break with a 4.5- to 5-lb. pull weight that minimizes shot disturbance and significantly boosts accuracy potential.

The BT-2 ATR comes with the NSP-2 six-position CAR stock to optimize ergonomics from any shooting position. The NSP-2 also includes ambidextrous QD sling swivel pockets for mounting the sling to the left or right side of the stock for a secure sling wrap around the shooter’s torso.

The ambidextrous functions continue with the new RRA BT2 freefloat handguard. M-LOK compatible, the BT2 handguard is 13 inches long and allows a QD sling swivel mount to be attached to the left or right side.

Rock River Arms BT-2 ATR Ambidextrous Tactical Rifle Specifications

  • Chamber: 5.56 NATO
  • Upper/Lower Receiver: BT-2 billet 7075 T6 aluminum
  • Barrel Length: 16 inches 
  • Twist: 1:9-inch
  • Muzzle Device: A2 flash hider
  • Gas Block: RRA low profile .750-inch
  • Trigger: RRA 2-Stage Ultra Match
  • Handguard: RRA BT-2 13 inch M-Lok
  • Charging Handle: Radian Raptor
  • Pistol Grip: Hogue beavertail
  • Stock: RRA NSP-2 six-position CAR
  • Length: 33 inches collapsed
  • Weight:8 pounds
  • Includes: One polymer 30-round magazine, hard case, manual and warranty

MSRP for the BT-2 ATR is $2,110, and to see the full range of firearms, components, and accessories offered by RRA, please visit


HD7 Bio Handgun Vault
HD7 Bio Handgun Vault

First Look: Sports Afield HD7 Bio Handgun Vault

Biometric locking combines with secure storage to keep your pistol close at hand.

Review: Safariland IncogX Holster for the Smith & Wesson Shield

How does the IncogX work with smaller-size carry pistols?

New Modern Sporting Rifles for 2024

America’s most-popular rifle is popular for a reason.

First Look: Savage Arms 320 FDE Tactical Shotgun

A new option for a workhorse tactical shotgun.

Kimber Announces KDS9c Redemption Promotion

Customize your pistol right from the factory.

Fightin' Iron: Johnson LMGs For Airborne Marines?

The Johnson Light Machine Gun showed up in a number of surprising places, like in Italy in 1944 with select elite units.


Get the best of Shooting Illustrated delivered to your inbox.