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[RETRO ARMS] CNC Aluminum Piston Head A1
  • SKU: RETRO-7999

[RETRO ARMS] CNC Aluminum Piston Head A1

$18.00 $20.00
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Product Description

RETRO ARMS piston head, Aluminum
It is made of high strength A7075, but the weight of the piston head and O-ring is 6.8g.
Including the thrust bearings and fixing screws, it weighs a hefty 12.2g.

The intake and exhaust holes are smaller than those of a regular aluminum piston head , with only about 1.5 Φ2.4mm holes.

This is effective when you want to assist with ammunition feeding by suction or reduce the expansion of the piston O-ring.

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