Radian AX556 5.56mm NATO Custom AR-15 Rifle - Radian Ambidextrous Lower, Geissele Upper, 14.5 in Pinned/Welded Barrel, M-LOK Rail
This custom AR-15 builds on a Radian AX556 fully ambidextrous billet lower paired with a Geissele 5.56 upper receiver group and Super Modular Rail. The 14.5 in barrel is pinned and welded to a three-prong flash hider for a legal 16.5 in overall length. A multicolor camouflage finish is applied across the receivers, handguard, stock, grip, and buffer tube. Ambidextrous controls, the Radian A-DAC system, and premium Geissele components make this a feature-rich, purpose-built rifle.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The firearm presents in great shape with visible scratches and blemishes. The bore is clean and shiny. Oxidization is present on the muzzle device. The rear takedown pin has very little tension; the spring or detent may need refreshment or replacement. There are patches of wear in the camouflage paint.
Some set screws show pitting.
What’s Included
- Radian AX556 5.56mm semi-automatic rifle as configured (Radian lower with Geissele upper; 14.5 in pinned and welded barrel; multicolor camouflage finish)
- 1x Magpul PMAG GEN M3 30-round polymer magazine (windowed)
The foundation of this build is the Radian AX556 lower receiver, a fully ambidextrous, 7075-T6 aluminum billet design featuring the A-DAC system, integral enlarged trigger guard, and a flared magwell. Controls include ambidextrous magazine release and safety selector, and the lower is marked Radian / Redmond, OR, model AX556, MULTI CAL.
The upper receiver group is from Geissele Automatics and is matched to a Geissele Super Modular Rail free-float handguard. The handguard uses the M-LOK interface, has a numbered 12-o'clock Picatinny rail, and an anti-rotation tab. A Geissele-branded bolt carrier is present, along with a forward assist and ejection-port dust cover.
Charging is handled by the Geissele Airborne Charging Handle (PN 05-497), providing ambidextrous operation. The rifle uses a direct impingement, semi-automatic action with a STANAG magazine interface and a carbine receiver extension/buffer tube.
The barrel measures 14.5 inches and is pinned and welded to a three-prong flash hider for approximately 16.5 inches overall barrel length. Furniture includes a Magpul adjustable carbine stock and Magpul polymer pistol grip, both finished in the matching multicolor camouflage.