goon2goblinThis is a purpose-built 6mm ARC precision upper, assembled from no-compromise components with the goal of accuracy, smooth cycling, and thermal stability rather than chasing lightweight gimmicks. Every part was selected because it solves a real problem in ARC setups. Round count is under 40. Built, zeroed, and verified — not a high-round upper. ⸻ Upper / Handguard Geissele MK18 ARCA Rigid, repeatable ARCA interface ideal for tripod and bipod work. The MK18 provides excellent lockup and maintains zero under load — critical for positional shooting. Barrel Helix 6 Precision Carbon Fiber 6mm ARC Match-grade barrel known for excellent accuracy with reduced forward weight and strong heat management. Limited production runs mean availability is often inconsistent. Bolt Carrier Group JP Enhanced LMOS Low-mass system reduces felt recoil and smooths impulse, allowing faster follow-up shots without sacrificing reliability when tuned correctly. Gas Block Superlative Arms Titanium Adjustable (Bleed-Off) Bleed-off design allows precise tuning suppressed or unsuppressed while reducing excess gas instead of just restricting it. Gas Tube V Seven Inconel Extreme Duty Aerospace-grade Inconel for extreme heat resistance and long-term durability — ideal for ARC pressures and sustained fire. Charging Handle Radian Raptor LT Ambidextrous and smooth, with enough surface area to stay easy to run as the system heats up. Muzzle Device VG6 Epsilon SL Hybrid brake/flash hider that keeps the rifle flat while remaining practical for range or field use. Caliber 6mm ARC High-BC projectiles, flat trajectory, and excellent long-range performance from the AR platform. Condition is excellent. This upper was assembled correctly, fired minimally, and not abused or rushed.
Zelle or PayPal G&S — buyer covers fee. 🔄 TRADES IN MY FAVOR ONLY KAC, Hodge, LMT, Staccato, Trijicon, Aimpoint, Nightforce, ZCO, Tangent Theta, EOTech, SIG, MAWL, OGL, RAID-XE, DBAL, NVG, premium optics/lasers.
