KE Arms KE-15 5.56 NATO Hybrid AR-15/AR-180 Piston Rifle – Billet Lower, Folding Stock, 16.5" Threaded Barrel
This custom-built KE-15 pairs a precision-machined KE Arms billet lower with an AR-180-pattern short-stroke piston upper, delivering a clean-running rifle that fires reliably even with the stock folded. A monolithic upper with uninterrupted Picatinny rail, a lightweight folding skeleton stock, and a free-float M-LOK handguard give this 16.5-inch carbine modern ergonomics and flexibility without added bulk.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – sharp lands and grooves.
Specific Condition Notes: Only minimal handling marks are present, and the bore remains bright and clean.
What’s Included
- Mission First Tactical EXDPM556 30-round polymer magazine
- Magpul PMAG 30-round polymer magazine
The heart of this build is a three-position adjustable short-stroke gas piston system (normal, suppressed, adverse) that keeps fouling out of the action and lets you fine-tune recoil impulse for any setup.
The billet 7075-T6 lower features an enlarged, flared magwell for faster reloads, while the monolithic upper provides rock-solid rail space for optics and accessories.
A self-contained dual guide-rod recoil system housed in the upper receiver allows the rifle to cycle with the 1913-mounted left-folding stock locked open or closed—ideal for compact transport or confined-space shooting.
The free-float aluminum M-LOK handguard, hard-coat Type III anodized finish, and threaded 16.5" barrel give you ready-to-go suppression options and plenty of attachment points without extra weight.