- Metal construction for better stability.
- Included arm enables greater hop effect for heavyweight BBs.
- O-ring on the adjuster prevents hop up from unwinding.
- O-ring on the feed tube for better air seal.
Compatible with: M4/M16 series AEGs
- Some parts from your old hop unit are required for installation.
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DetailsCurrent Stock:SKU: 1079UPC: 4582109585252Global Trade Item Number: 4582109585252Width: 7.90 (cm)Height: 12.00 (cm)Depth: 2.00 (cm)