JP MicroFit Takedown Pins for AR15s and AR10s

Does your Black Rifle have a sloppy upper/lower fit? That can be annoying; what’s more, loose fit can limit accuracy potential. Here’s a clever solution for poor-fitting AR-15 and AR-10 upper and lower receivers. The new JP MicroFit takedown pins can improve even the sloppiest ARs, providing a rock-solid upper/lower receiver fit.

MicroFit pins come in three sizes and two types: standard (“mean”), oversized, and undersized, with types for both front and rear of the receivers. The mean pins match standard takedown pin sizes while the over- and under-sized vary by slightly more than .001″ (+/-) from the standard diameter. NOTE: Although most poor-fitting receivers are loose, some are too tight. Very tight receivers, such as post-Cerakote, can be remedied with the undersized pins.

Shown is JP Enterprises’ PSC-12™ upper assembly with LRP-07™ lower assembly.

“An AR with a loose upper/lower receiver… will not reach its accuracy potential. That was the goal with our original JP Tension Pin, but MicroFit™ pins provide the same result without tool-assisted takedown. The MicroFit pins require no modification to the receiver. They simply replace your current pins”, stated JP Enterprises founder John Paul.

JP’s MicroFit pins feature a polished black finish with a hard, durable QPQ coating. This provides smooth insertion/removal plus excellent corrosion resistance. All pins feature a two-faceted punch or bullet capturing recess. This allows the user to apply force to the pins safely without risking scratching the receiver. JP’s MicroFit pins are sold as both as individual pins and as replacement sets.

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Tags: AR10, AR15, Gas Gun, JP Enterprises, Takedown Pins, Upper Receiver