AR pistol build question on the RRA buffer tube

[xbimmers]

I am in the processes of gathering the parts I need to build an AR pistol. I need to know if the RRA pistol buffer tube needs a castle nut of some sort. Please let me know. Thanks.

[STiiBS]

The RRA Pistol Buffer Tube does not use or need a Castle Nut to retain the Buffer Tube.

[MRpink]

The RRA Pistol Buffer Tube does not use or need a Castle Nut to retain the Buffer Tube.

Affirmative.

[xbimmers]

Can I put in an accessory plate with QD and stuff in place of the OEM plate?

Affirmative.

[MRpink]

RRA buffer tube actually doesn't come with a end/sling plate, so you're going to have to order one anyway. You might have to take a file to the "nub" on the plate to make it fit the buffer tube though because the tube doesn't have that channel cut like most standard AR buffer tubes. Takes a few seconds with a dremel or file. Trying to find a picture...

[FNH5-7]

OK, so the RRA buffer tube doesn't need a castle nut BUT can one still be used if one chose to do so?

[MRpink]

OK, so the RRA buffer tube doesn't need a castle nut BUT can one still be used if one chose to do so?

I don't think so, the RRA buffer tube screws in flush with the end plate (no extended/leftover threads for the castle nut).

[FNH5-7]

I don't think so, the RRA buffer tube screws in flush with the end plate (no extended/leftover threads for the castle nut).

Ah....... now I get it, thanks.

[xbimmers]

I am pretty sure I got what you mean. Sounds easy enough!

RRA buffer tube actually doesn't come with a end/sling plate, so you're going to have to order one anyway. You might have to take a file to the "nub" on the plate to make it fit the buffer tube though because the tube doesn't have that channel cut like most standard AR buffer tubes. Takes a few seconds with a dremel or file. Trying to find a picture...

[Exile Machine]

We sell the RRA (fluted) tube with the plate and with the nub already ground off. It will not take a castle nut, simply will not fit, not enough threads. Besides it would look like crap. If you want a buffer tube with a castle nut and standard plate, we offer the Spike's Tactical (Fat) buffer tube, comes with those items.

We also carry a good selection of durable textured rubber sleeves for the pistol tubes, and foam covers as well.

-Mark