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FCC BCM GunFighter Mod4 CHARGING HANDLE BK
Sale Price: $ 45
FCC NOVESKE style QD SLING SWIVEL for PTW/GBB
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HAO HK416A5 style Enhanced Ambidextrous Ring Plate
Sale Price: $ 15
PTS Low Profile QD Sling Swivel
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ORGA HD448mm Complete Chamber for PTW
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Used to connect piston and piston head.
Existing items are fixed with screw locks (red). In order to disassemble it, warm it with a heat gun, dissolving the screw lock first before disassembling.
The countersunk screw in the piston head is a hexagon (M2.5), and the guide side is negative.
When replacing, fix each part of the screw with your screw lock material.