will this one fit in my arp 9
PolarStar Jack V2 HPA Unit | Standard FCU | V2 M4 HPA Kit
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Open May 08, 2023 - 11:29 PM
1answer
Answer
Nov 26, 2021 - 12:49 AM
Yep, it will fit just fine!
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PolarStar Jack V2 HPA Unit | Standard FCU | V2 M4 HPA Kit
PolarStar Jack V2 HPA Unit | Standard FCU | V2 M4 HPA Kit The Polarstar “JACK” was designed to answer the demand for an affordable, high performance HPA conversion for AEG's. The system is a drop-in cylinder replacement that will be universally compatible with a wide range of gearbox versions th...
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