Caliber: .556 and .300BLK

Magazine: 30rd Magpul

Barrel: 10.5” and 16” Nitride Finished 1/7 Twist (556), 8” and 16” Nitride Finished 1/7 Twist (300BLK)

OAL: 19.5-27.5”

Operation: Semi-Automatic Direct Gas Operated

Stock: Magpul Folding Adjustable

Grip: Magpul


Receiver Material: Upper/Lower/Handguard from US Billet Aluminum

Controls/Safety: Mil-Spec, Ambi-Bolt Catch

Charging Handle: Left Side Non-Reciprocating/Folding

Rail: 7,10, and 15” M-Lok Compatible with Full Length MIL-STD 1913 Rail at 12 O’clock

Muzzle: Mil-Spec Birdcage

Finish: Hardcoat Type III Anodizing (Black) and NiB Battleworn

Trigger: Mil-Spec

MSRP – Starting at $2,250

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Product Description

Aptus is a further evolution of our patented internal recoil system and quick change barrel weapon systems in 556 and 300BLK.  The patented internal recoil system eliminates the standard buffer tube/spring associated with most 556/300BLK rifles allowing the rifle to be fired with the stock folded. The rifle can be assembled in less than 60 seconds without the use of any tools.