2015年2月23日 · Upper: JPNC22 (Nordic bolt/upper receiver and JP match barrel) Hand guard: Extra long JP rapid configuration hand guard system. Optics: Vortex Crossfire Gen II Irons: GDT AR15 AR 15 Front and Rear 45 Degree Rapid Transition BUIS Backup Iron Sight.

2021年2月12日 · I have a couple other AR22 of various bolt types including CMMG and the JP bolt and barrel assembly is unique in that it doesn't rely on a set of rails reciprocate and there's no collar. What I've come to learn in my own research (please correct me if I'm wrong) is the JP bolt design is the latest evolution of the Nordic Components bolt which ...

2011年10月18日 · I have a full blown PSC-11 rifle, with Billet side charger upper, 18" heavy barrel, heat dissipator, Mil-LE handguard, JP compensator, bolt carrier, bolt etc. This upper is on a JP forged lower with a JP custom trigger (4lb), Magpul ACS stock, and Ergo pistol grip. On top of all of this is a Leupold 6.5-20 x50 long range scope and Troy BUIS.

2014年5月3日 · The carrier I used is made by JP, and JP adds that cutout for use with their own JP-branded side-charging upper. The Gibbz charging handle does not sit low enough to get near that cutout. I've also installed a regular M16 carrier and it works equally well with the Gibbz upper (but obviously would not work with the JP).

2025年3月2日 · Purchased September 2022, upper is practically brand new Minimal rounds through upper Selling because I have no interest in shooting 22lr anymore Comes with 3 black dog magazines Selling Upper "As Is", asking $500 (MSRP $899, not including the mags) Prefer to sell in person, but willing to ship at buyers expense

2024年9月11日 · At $1500 the Mean upper is nearly the same price as a complete CMMG Resolute Mk4 using same ENDOmags but if it offers reduced recoil and less dot bounce it would be better for the kids on my SASP team competing in PCC.

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2023年6月3日 · The upper minimum bore ID is 1.000", add the specified anodizing thickness you get a minimum of 0.9988". The maximum OD of the extension is 0.9987". That is going to require some pushing, or warming to fit together. The upper maximum bore ID is 1.002", add the specified anodizing thickness and you get a maximum of 1.0012".

2008年5月30日 · JP enterprises has a system to fit the barrel to the upper and I quote their site. "The CTR-02 upper receiver also features another new JP design feature, the Thermo-fit™ barrel mounting system, which results in the most stable relationship between barrel and upper receiver yet achieved in this type of rifle yielding reproducible accuracy in the sub-half-MOA range with match quality ammo.

2021年2月20日 · Normally, when I'm installing the handguards, I can achieve about .010-.020" deviation at any measured point around the OD of the handguard, to the OD of the barrel. However, with my latest build - which is a JP upper and handguard - …