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Important JP Product Safety Notices and Recalls

It has come to our attention that some commercially produced 9mm remanufactured (reloaded) ammunition is over-crimped. This can render the cartridges unusable and potentially dangerous to use in 9mm carbines such as the GMR-13.

Read this SAFETY NOTICE for more information for warning signs and safe handling.

Colt’s manufacturing has made several versions of their lower receivers and you must determine which one you have before purchasing/installing the JPFCP-EZ kit.

First, measure the pins in your Colt lower to determine if they are .154 or the .169 in diameter. Only .169 pins will be compatible with the JPFCP-2EZ kit. Use the JPFCP-1EZ kit for a receiver with .154 pins.

Second, verify that your lower receiver has the machined-in wall feature used in newer Colts and not the pinned-in full auto sear block common to older Colt models. If your receiver has the pinned-in block, the JP EZ Trigger will not be compatible (see below). If this is the case, then please contact us directly to either purchase our discontinued JPFCP-2 kit or arrange to have the kit professionally installed by our gunsmiths and returned shipped for $220 with a one-week turn around.

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Not Compatible
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