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JP-15 9mm

I had to have one—so do you.  Who doesn’t want a 9mm upper assembly for their AR-15 lower? It shoots less expensive 9mm ammo, has extremely fast sight recovery and delivers rifle-level accuracy out to 100 yards.  Get the whole package with the upper, magazine conversion block, Lula loader (because those 9mm mags are a you-know-what to load by hand) and several 32-round magazines. We priced it as separate items in case you already have some of these parts.  Did you know that most standard .223/5.56 mag pouches will hold two 32-round 9mm mags? Now you do.  Convert your lower with the mag block in about 30 seconds and you’re in business

Set up the lower with an AR-10-type recoil spring and full mass buffer if you have a rifle length stock or get the special 9mm extra mass buffer if you have a carbine stock system.  The extra spring rate is the key to a blow back system that has super fast sight recovery and minimal recoil.  It makes a night and day difference on a 9mm blow back platform! For practice or matches inside 100 yards, this is a tough setup to beat.  Accuracy with high-quality ammo is about 2 MOA at 100 yards—very impressive! With some of my hand loads, I’ve shot groups in the 1 ” range at 50 yards.  I can’t wait to enter a 9mm benchrest match! OK, maybe not.

A 9mm upper is also an excellent home defense carbine with impressive ballistics out of the longer barrel (similar to .357 magnum) without the over-penetration issues of most rifle cartridges, not to mention the lack of concussion in enclosed spaces.  The standard barrel length will be a threaded 16”.  However, we will offer a 14” version with a permanently installed comp for a legal 16” overall length.  For those of you with an SBR lower, a 10” barrel is a very handy setup that still delivers much higher velocity than pistol barrels.  Don’t forget, JP Enterprises, Inc. can build a short-barreled rifle (SBR) for you too!

Call in to order your 9mm JP Rifle


Rock River Assemblies
JPRR9MM UAJP 9MM A-4 Upper Assembly$899.00

Rock River Accessories
RR9MM 01199MM Lula Loader Accessory$35.00
RR9MM 0116A32 Round 9MM Magazine$35.00
RR9MM 01159MM Magwell Conversions Block$175.00
RR9MM 01079mm Carbine Buffer$25.00
JPS-OSRJP Tuned and polished extra power buffer spring, rifle$19.95
JPS-OSCJP Tuned and polished extra power buffer spring, carbine$19.95
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