RO21 AMBI 11.5 5.56 SBR Black


This is an NFA item. Once your item arrives at your FFL destination, you will be required to fill out a Form 4 and pay a $200 tax stamp.

This item must be shipped to a Gun Store/ FFL. Please enter FFL Dealer and phone number. You will choose your FFL Destination at time of checkout.

If Expediting: Make sure the FFL writes your name on the copy so we know what customer the FFL goes with and email [email protected]

Once we have your FFL, your items will ship to your FFL dealer.


RO21 AMBI 11.5 5.56 SBR Black includes:

• RO21 7075 T6 Aluminum Precision Ambi Receiver Set

Upper Receiver: Precision machined 7075 T6 upper receiver offers M4 extended feed ramps, forward assist and a positive anti-rotation interface to the RO21 Handguard

Lower Receiver: Ambi Controls include: Ambi Bolt Release, Ambi 45°/90° Safety Selector / Finish: Hard Coat Type III Black Anodize with options for Cerakote Ceramic Coating

• 10 7/8 RO21 MLOK Handguard / Black Nitride Coated Barrel Nut / Anti-Rotation Pin Interface for Upper Receivers

• 11.5″ 5.56 Government Profile 4150 Chrome Moly Vanadium Steel / QPQ Coated for corrosion resistance. Twist Rate 1:7. Gas Block Journal .750″

• High Quality 5.56 Black Nitride Bolt Carrier Group / M16-cut / Shot Peened / Forward Assist Serrations/ Properly staked gas key

•VG6 Gamma 556 Muzzle Break

•Radian Raptor Charge Handle

•Radian Talon Ambi Safety Selector

Velocity Single Stage 3.5lb Trigger (Not Pictured)

•MBUS Front and Rear Flip-up Sights

• Magpul MOE SL Stock

•Rogue Ops Pistol Grip (RAPTOR or PREDATOR)

• Rogue Ops Reversible Hand Stop

• (1)Magpul PMAG 30 RD Magazine (If State Laws permit)

• Soft Gun Case

• Weight 6.0lbs



Weight 14 lbs
Dimensions 42 × 14 × 4 in
Pistol Grip

Black Predator, Black Raptor


Add Eotech XPS2-0 Black, Add Eotech XPS2-0 ODG, Add Eotech XPS2-0 Tan, MBus Pro Front and Rear (Only), Remove MBus Pros, Remove MBus Pros add Eotech XPS2-0 Black, Remove MBus Pros add Eotech XPS2-0 ODG, Remove MBus Pros add Eotech XPS2-0 Tan