Global Ordnance Monolith 15A 5.56 NATO AR-15, 16.5 in 41V50 Barrel, Bufferless DI, Folding Stock, Ambidextrous Controls
The Monolith 15A is a recent-release AR-15 platform that combines a bufferless direct-impingement system with fully ambidextrous controls and a left-side folding, length-adjustable stock. Its monolithic barrel assembly integrates a Dead Air KeyMo brake, gas block, and barrel extension, and the upper/handguard interface provides a continuous 12 o'clock Picatinny rail. This example includes a Magpul PMAG GEN M3, an under-handguard weapon light, and an angled foregrip.
Condition
Overall Condition: Poor condition.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are scratches and blemishes present, and the hard edges show finish wear. This rifle is not fully operational. The guide rod appears slightly bent, causing the action to bind. The bolt cannot be pulled fully to the rear to chamber rounds. Parts will need to be replaced or refreshed to restore function.
What's Included
- 1x 30-round Magpul PMAG polymer magazine (GEN M3)
- Under-handguard weapon light with codes DF-907E and LE06-DO (installed)
- Angled foregrip mounted to the M-LOK handguard (installed)
The bufferless direct-impingement system uses dual nested recoil springs housed in the upper, eliminating the traditional receiver extension. It is designed to be safe to fire with the stock folded, and the forward, non-reciprocating charging handle is positioned at 12 o'clock and folds when not in use.
The 16.5 in barrel is made from 41V50 steel with a black nitride finish and a 1:7 twist. Its monolithic assembly integrates a Dead Air KeyMo brake, gas block, and barrel extension. The free-float M-LOK handguard locks to the upper in an interlocking interface that maintains a continuous top rail for optics and accessories.
Controls are fully ambidextrous, including the magazine release, bolt catch/release, and safety. The rifle features a left-side folding, length-adjustable stock and a K2 XL pistol grip. Approximate overall length is 24.5 in folded and 31.25 in unfolded, with an unloaded weight of about 5 lb 10 oz.
The upper provides a full-length 12 o'clock Picatinny rail and is optics-ready with no sights included. Additional details include a black finish, 7075-T6 aluminum receivers, and a patent marking observed on the muzzle device collar (11441867). Capacity is 30+1 with the included PMAG.