The PWS MK114 Mod 1-M upper receiver is chambered in 223 Wylde and built with a long-stroke gas piston system for cleaner, more reliable operation than direct impingement. It features an adjustable gas system, a 14.5" 416R steel barrel with a 1:8" twist, an M-Lok handguard, and an anodized black finish. Fits any mil-spec AR-15 lower.
- Action : 223 Wylde
- Barrel Length : 14.50"
- Barrel Material : 416R Steel
- Barrel Finish : Anodized
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