Grey Ghost Precision Mod. Cornerstone AR-15 Pistol .300 AAC Blackout 10.5 inch - Custom Camo Upper, Side-Folding Rear Assembly
This Grey Ghost Precision Mod. Cornerstone is a custom-configured AR-15 pistol chambered in .300 AAC Blackout with a stated 10.5 inch barrel. It features a multi-tone camouflage-style paint pattern on the upper receiver and handguard, plus a side-folding rear assembly. Markings on the lower include "MOD. CORNERSTONE" and "CAL.
MULTI", along with Grey Ghost Precision, LLC Lakewood, WA, USA identification and the skull-over-"GGP" logo.
CONDITION
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Mechanical Condition: The firearm appears to function properly with no known mechanical issues.
Cosmetic Condition: This firearm shows extensive signs of prior use and handling, including visible wear.
Specific Condition Notes: This firearm is in solid functional shape. There are some scratches and blemishes present. The bore is clean and shiny. The upper was spray painted in a camouflage style.
WHAT'S INCLUDED
- 3x 30-round AR-15 detachable box magazines (polymer; one appears Hexmag-style with hex-pattern body; others unbranded/unclear)
- BCM vertical foregrip (installed)
- Magpul polymer pistol grip (installed)
- Bolt-on Picatinny rail section on the handguard (installed)
- Custom ejection port dust cover marked "300" and "Delivering Death" (installed)
- Side-folding rear assembly with cylindrical tube and flat strut (installed; unbranded)
Built on the Cornerstone series receiver set, this pistol is marked "MOD. CORNERSTONE" with "CAL. MULTI" on the lower, and it carries Grey Ghost Precision, LLC Lakewood, WA, USA markings with the skull-over-"GGP" logo. The configuration is set up around a direct-impingement AR-15 platform in .300 AAC Blackout.
The upper and handguard wear a multi-tone camouflage-style coating/paint pattern, giving this example a distinct look compared to a standard factory finish. The handguard is a free-float KeyMod-style design with a short, bolt-on Picatinny rail section mounted near the front (side-mounted), providing a hard-mount location for compatible accessories.
Ergonomics and handling are shaped by the installed BCM vertical foregrip and Magpul polymer pistol grip. Up top, a full-length Picatinny rail spans the upper receiver and handguard for flexible mounting options along the entire top rail.
This pistol also includes a side-folding rear assembly (unbranded) and a custom ejection port dust cover marked "300" and "Delivering Death." A multi-port muzzle device with a compensator-style appearance is installed, with no visible branding.