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SRC Metal Hop Up Unit for M4/M16 (Made In Taiwan)


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The SRC Metal Hop Up is designed for use with the SRC M4/M16 series AEGs. Some modification may be required to use in other manufacturers AEGs.

Manufacturer: SRC
Package Includes: Hop unit, rubber bucking, adjustment wheels and springs, barrel lock

Please Note:
Assembly required

Add to Cart:

  • Model: SM4-55
  • Manufactured by: SRC