Pws 13.5X1Lh Piston Blk
$76.95
$87.95
(You save
$11.00
)
The PWS 13.5x1 LH piston is a suppressor adapter designed for shooters running Primary Weapons Systems' long-stroke piston upper receivers with 13.5x1 left-hand threaded barrels. If you're building or running a PWS piston gun and want to mount a PWS suppressor, this threaded piston gives you a clean, direct interface between your upper and sound suppression—no workarounds, no mismatched thread pitches.
Primary Weapons Systems developed their long-stroke piston system starting in 2008 with a straightforward goal: reduce maintenance burden on high-volume shooters and those operating in harsh conditions. Unlike direct-impingement AR-15s that require frequent cleaning after heavy firing or in dusty/sandy environments, a properly tuned piston gun cycles cleaner and keeps carbon where it belongs—away from your bolt carrier and receiver. The 13.5x1 LH piston is a core part of that ecosystem, enabling you to suppress while keeping the piston advantage.
This piston is anodized black for durability and corrosion resistance. It's a straightforward, precision-made component—the kind of thing that works quietly in the background once it's installed correctly. If you're serious about running suppressors on a PWS piston upper, having the right threaded piston is non-negotiable; this one is made to spec by the folks who engineered the system.
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