LWRCI R.E.P.R. MKII-SC 6.5 Creedmoor AR-10, 22-inch Spiral-Fluted Heavy Barrel, Left-Side-Charging Piston System, FDE, Geissele SSA-E
This LWRCI R.E.P.R. MKII-SC in 6.5 Creedmoor is a precision-focused, short-stroke piston AR-10 configured for stability, control, and reliability. It features a 22-inch spiral-fluted, heavy-profile barrel with a 1:8 twist and black-nitride treatment, a non-reciprocating left-side charging handle, and a 20-position adjustable gas block. The rifle is finished in Flat Dark Earth with a monoforge upper, fully ambidextrous controls, a Magpul PRS adjustable stock, and a Geissele SSA-E two-stage trigger.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minimal handling marks are present on exterior surfaces, consistent with moderate prior use. Please review the photos for close-up views of finishes and components.
What’s Included
- Benchrest/F-Class-style bipod with spiked feet, mounted via MDT-branded interface block (installed)
- Soft rifle case (tan)
- LWRCI Operator's Manual
- Two 20-round magazines (one Lancer L7AWM; one appears to be a Magpul PMAG LR/SR)
Built on the R.E.P.R. MKII-SC platform, this rifle uses a short-stroke gas-piston system paired with a 20-position adjustable gas block, enabling fine-tuning across ammunition and shooting conditions. The nickel-boron coated bolt carrier supports smooth cycling and easy maintenance.
The 22-inch steel barrel is spiral fluted, heavy profile, button-rifled, threaded, and black-nitride treated for durability. A multi-port muzzle brake is installed. The 1:8 twist is optimized for popular 6.5 Creedmoor bullet weights used in precision shooting.
Controls and ergonomics are refined for practical use. It features a non-reciprocating left-side side-charging system, fully ambidextrous controls including the safety selector and magazine release, and a Geissele SSA-E two-stage trigger. The Magpul PRS stock provides adjustable length of pull and cheek height, paired with an LWRCI-branded pistol grip with LWRCI logo and distinctive texturing.
The monoforge upper integrates a full-length 12 o'clock Picatinny rail over a free-float Flat Dark Earth handguard with large oval ports for ventilation. Markings include "R.E.P.R. MKII-SC 6.5mm CREEDMOOR" on the upper; the shared MKII lower is marked "R.E.P.R. MK II 7.62x51 NATO." This example also comes set up with a benchrest-style bipod mounted via an MDT interface block.




