Ridgeline Defense RD-15 LPR Limited FDE .223 Wylde, 16 in PROOF Research Match Barrel, Geissele Flat-Faced Trigger
This limited FDE RD-15 LPR is a precision-oriented AR-15 built around a 16 in PROOF Research stainless, cut-rifled match barrel and a Geissele flat-faced match trigger. It features a semi-monolithic receiver/handguard interface and an integrated ARCA-Swiss style dovetail, with factory acceptance requiring sub-MOA accuracy using 77-gr Federal Gold Medal Match. Ambidextrous controls, premium materials, and Multicam B5 Systems furniture round out a focused, high-accuracy build made in Nashua, New Hampshire, USA.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are very mild scuffs on the handguard from past attachments. There is mild carbon buildup on the muzzle device.
What's Included
- 1x 30-round Magpul PMAG Gen M3 windowed polymer magazine
- Picatinny rail-mounted bubble level (installed)
The heart of this LPR is its 16 in PROOF Research stainless, cut-rifled match barrel chambered in .223 Wylde. The barrel is threaded and paired with a direct-impingement gas system, and each rifle is factory-accepted only if it delivers sub-MOA performance with 77-gr Federal Gold Medal Match ammunition.
A semi-monolithic receiver/handguard interface is engineered to reduce POI shift from rail, bipod, or barricade loading. The free-float M-LOK handguard is 6061-T6 aluminum with a T-marked full-length 1913 Picatinny top rail and an integrated ARCA-Swiss style dovetail along the underside for rapid tripod or bag transitions.
Controls are fully ambidextrous, including an ambidextrous safety selector and paddle-style magazine release, with an enlarged bolt-catch paddle for efficient manipulation. A Geissele flat-faced match trigger provides a crisp, predictable break. Capacity is 30+1 with the included 30-round PMAG.
The receivers are 7075-T6 aluminum finished in Flat Dark Earth as part of this Limited FDE run, complemented by B5 Systems Multicam furniture: a collapsible stock and pistol grip. Length of pull is 11.75 in. Manufactured by Ridgeline Defense in Nashua, New Hampshire, RD-marked rifles precede Ridgeline’s planned 2026 transition of rifle manufacturing to Hartmann Defense.