With this small screwdrivers you can adjust and maintain your SRS or AAC VSR hopup units This set contains 2x small screw drivers. The blue screwdriver is often used to tighten and untighten the hoparm screw of the Stalker SRS Kraken hopup chamber, and the yellow one to tighten or untighten the grubscrews in the Stalker Kraken SRS hopup chambers.
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