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For the last 13 years, LAPCO has manufactured the best barrel adapters and breech sizers in the industry. The barrel adapter line was first started in 1996. By installing this adapter between the Cocker threaded barrel and the Cocker threaded marker, you will prevent balls from rolling out of the barrel without losing any accuracy. This is an especially effective accessory to prevent paint roll-out from pump and other closed bolt markers.
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