Posted on 04/26/2017 10:41:29 AM PDT by Joe Brower
>>> On short barrela I do not find stocks to be of any value for quick tactical shooting. A sling put in tension while pushing the gun forward is much more stable for that purpose. A stock is good for scopes but scopes are not that useful on short barrel short range guns.
Agreed. The PLR-16 has no buffer tube for such attachments. I use a single-point sling on it for the reason you mention, attached to the optional barrel shroud rather than the sling mount you can buy for the rear.
Excellent, old-ager. That answers many questions. Thanks!
That is a good way to be. Note that for now, the bureaucrat in charge of the BATFE is an Obama holdover, one who had a personal involvement in the *Fast and Furious* BATFE operation that supplied the murder weapon with which Border Patrol Agent Brian Terry was murdered.
That said, I'm looking to set up a .300 Blackout with this arrangement. Seems like pistol ARs have yet a third buffer-tube dimension (1.125"), in addition to the military (1.14") and commercial (1.17") specs. That's the beauty of standards... so many to pick from. :-)
Not exactly. You're correct on the internal dimensions of the commercial and military-specified internal diameters of the buffer tubes, but on the pistol buffers, it's the external diameter that's the primary focus, all those I've examined having the military 1.14" internal ID dimension, though some of the non-bracing pistol-length buffers are made for commercial buffers. This is so that the buttstock unit of an M4 can't be *readily* fitted to one of the short-barrelled pistol buffer tubes.
And does anyone have an suggestions regarding the braces themselves. I see models made by Sig-Sauer, SB Tactical (SBM4) as well as KAK (ShockWave). There are likely others.
One of the two .300 BOs I've built up was in rifle configuration, the other was a 10-inch barrelled *pistol*. Mine was fitted with a side-folding stock assembly adapter from LAW Tactical, available and better described at Brownell's *here*. Pricy, at around $200, but critical if a *pistol* with 10" barrel and 7" receiver, plus buffer tube, is going to fit inside a 21" fiberglass motorcycle saddlebag. This was paired with a KAK Industries *ShockWave* pistol brace, at Brownells around $100. Mine was in the sand/ *flat dark earth* color, a match for the grip and MagPul M3 magazines.
My only current AR-15 *pistol* is in .22 Long Rifle, and thereby doesn't require a buffer assembly or tube, and doesn't have one. And it fits inside an 18" laptop computer bag.
Known to my local circle of shooters and gun tinkerers as *the shark fin* after I got the first one seen locally. I was quite happy with mine, and so did not really care very much how the ATF felt about it. Very minimalist, light and simple, and available in the colour I required.
What caliber is the “shark fin?”
Roger that, I always cheek weld mine at the range but you can adjust the length of pull and extend the fin along the buffer tube to a comfortable shouldering position to leave an AR-9mm pistol on your wife's side of the bed for home defense...wink!
They're made to fit any standard military receiver tube AR-15 family lower receiver [M16,M16A1,M16A2,XM177,M4 and many, many civilian variants] made,62 NATO versions that use the standard M18 for the .223/5.56mm sized lower, and at least some of the larger 7.62 NATO versions that use the standard M16 buffer tube 1 3/16"th threads. Accordingly, they'll fit any .223 lower receiver, or any in a caliber based on the .223 or 5.56x45mm chambering, including .300 Blackout, .300 Whisper, 6.5x45mm, 6,8SPC, 6.5 Grendel and anyily r AR-15 or M16 family pistol using a .22 long rifle conversion kit or originally chambered for the .22.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.