Description

The HartBlock is a -20 limiter for Gen M3 PMAGs from Magpul. It converts a 30-round body to a 10-round magazine, It is designed to allow dust cover use as well as inserting the magazine in your rifle with the bolt closed.

There is an image listed that is an X-ray showing the HartBlock in place inside the spring. You can see it does not interfere with spring function and has two-point contact with the follower for added support. Made of glass-filled nylon, they will last longer than the laws that require you to use them.

Comments (1)

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All you tactical rednecks with your high capacity assault weapons should be ashamed of the death and destruction you cause and support. You should all voluntarily convert all high capacity mags with these devices.

Think of the children.

Signed, your neighborhood libtard

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