Handguards and a JP CTR

[Nemesis Lead]

HI All,

I have a JP CTR that I love. I am told the barrel nut configuration is different on a JP than a "mil-spec" rifle. How does this limit my handguard choices, if at all?

Specifically, I am interested in the following handguards:

1) BCM KMR

2) Seekins SP3R (a bit heavy, but I like the concept)

3) Carbon Arms Feather

Does anyone know if these are "JP compatible?"

Many thanks!

Jay

[slowhand23]

Carbon Arm Feather once was available in two models, milspec & JP nut. JP version no longer available but I was able to find a lightly used one from a Enos member. 15" = 5 ozs if I remember correctly vs 12.5 for JP.

[bgary]

Yes, the JP barrel nut is different from a milspec barrel nut.

About the only readily-available handguard that works with the JP nut is JP's "other" style, the RC (rapid configuration) handguard. They make a version that uses the original-style barrel nut.

Beyond that... if you want to change handguards, you're looking at changing barrel nuts, too.

[Nemesis Lead]

Thanks guys--I appreciate it since I am totally unfamiliar with barrel nuts.

So if I just bought a milspec barrel nut and ANY of the 3 handguards mentioned above, I could mount them on my JP? Do you foresee any issues?

[outerlimits]

if whoever put that together followed JP instructions, it might be a tad difficult getting that nut off the receiver. it is a 2 piece nut and i think you used red loctite. good luck.

[Dan Sierpina]

I know the Seekins and Carbon Arms handguards use proprietary barrel nuts / handguard mounts. I don't know about the BCM.

[TRUBL]

Just about any aftermarket hand guard out there has a 'proprietary' barrel nut. JP, DPMS, MWI, Yankee Hill, Noveske, etc. And they pretty much come with the nut and tube.

Sampson (and maybe troy??).....does use a Mil Spec barrel nut and so do a few others.

If you are looking to swap out the hand guard, don't let the barrel nut stop you.....just remove it.

The CTR-02 upper has a mil spec thread and will take most all of the hand guards mentioned above. It will even take the ones that key in on the mil spec upper, except you'll have to remove that feature on the tube and just line up the rails.

To get the nut off......take the tube off, then with an armors wrench, remove the internal barrel nut. To get the outer nut off.....you'll be needing to heat it up with a propane torch....once you see the loctite bubble....it'll come right off

Tim

Edited July 29, 2014 by TRUBL

[blu46and2]

I have a CTR-02 with the Seekins handguard. The Seekins handguard uses a proprietary nut and it works just fine.

[Steve RA]

AP carbon fiber uses std barrel nut.

[Stlhead]

It seems that there are many on this forum who have spent a great deal of time studying nuts. I personally have spent far more time studying other things, but I can appreciate the dedication to nuts that is displayed in this thread. And special recognition to TRUBL who even went so far as to tell us how to get our nuts off.

[outerlimits]

some of us have two nuts, others only one.

[bigbrowndog]

I have a carbon arms fore end for the JP nut, that I am willing to get rid of if you're interested.

trapr

[SnivelingDramaQueen]

I have Lancer-Systems premium slot extra long carbon handguard.

Nut is same like JP

Edited July 30, 2014 by ZeljkoLucic