The Magpul PRS GEN3 AR15 / M16 Stock

The Magpul PRS GEN3 is a field precision stock for AR15 / M16 and AR10 style / SR25 platforms, featuring tool-less adjustment for length of pull and cheek piece height via aluminum detent knobs. The PRS GEN3 (Precision Rifle / Sniper) stock is intended for semi-automatic or varmint type rifles. It installs on rifle-length receiver extensions as well as mil-spec and A5 length carbine receiver extensions and includes a cant/height-adjustable rubber butt-pad and rotation-limiting QD sling cups as well as M-LOK slots on the bottom for rear monopod mounting.
Learn more here www.brownellsvideos.com

[@BeefaloBart]

Just got one yesterday as a birthday gift. I have always wanted one but seemed there was always something that prevented me from getting one. I was taken aback when I opened the box and saw that it would also fit on a carbine buffer tube, but I had been running an A2 stock on my AR for a couple years. Today put a few hundred rounds down range with my AR and hated that moment when I saw the ammo can was empty. It made a nice difference in how much time I wanted to be behind the scope on that rifle. Now its time for a mono-pod lol.

[@reptiliangold15]

The mlok on the bottom is definitely a big up from the old system, very nice

[@markjmaxwell9819]

I'm suprised that a AR15 buttstock has not been designed that has a normal AR15 sliding and locking design for lenght of pull. But with an adjustable cheek rest that when fully down. Sits in a recess so that it blends seemlesly into the buttstock, and can be adjusted using a similar thumb wheel design to the magpul prs.

[@BosleyBeats]

I cannot wait to get my hands on this

[@holdernewtshesrearin5471]

To anyone that hates the new gen 3 PRS because its too long, theres an easy fix. If your using it on a carbine buffer tube, you can simply remove the "neck" section and install as usual making it 3/4" shorter. I used mine like that for a while but eventually i missed the refined, smooth, finished look so i cut 3/4" from the center of the "neck" section, between the qd sling mount and the end which slips under the castle nut. I also had to cut about 1/8" from the "tabs" that protrude from the front of the main stock body and slide into the "neck" section. Once done my PRS is much more comfortable and wieldable from awkward positions or for maneuvering or firing in a CQB situation. Btw the charging handle will contact the cheek riser if its extended at all necessitating the need for a minor 3/16" deep relief cut. All cuts are easy to do with a cordless reciprocating saw, oscillating saw, band saw or even hacksaw. Clean the edges with a file and sandpaper. For those that want the stock even shorter you can simply remove the rubber buttpad, shortening it another 1", and shoulder against the aluminum buttpad carrier. Its not uncomfortable but you could glue a thin buttpad to the carrier for comfort and traction. I plan to replace my carrier with a custom made piece with its own integral rubber buttpad giving me a 2" shorter overall PRS for CQB and storage yet maintain the full 1.5" extendability for DMR or benchrest use. Now if only there was an easy fix for the angled stock toe. Magpul really screwed the pooch with that change!

[@leroyjenkins4811]

Question. The charging handle contacts the cheek piece after you made all the shortening modifications, correct? When you were using the stock in it’s full long factory configuration, the charging handle never made contact with the cheek piece? I would like to buy this stock for a DMR build but if it interferes with the charging handle operation in factory configuration, I don’t want it.

[@holdernewtshesrearin5471]

@@leroyjenkins4811 - no, the charging handle doesnt contact the cheek piece riser with the cheek piece in its lowest position. If you have the cheek piece raised, the charging handle does just contact, but doesnt interfere with charging the chamber. I used the AXTS (now Radian) raptor ambi charging handle.

[@holdernewtshesrearin5471]

@@leroyjenkins4811 - its a fairly simple process to cut the stock down if you are moderately "handy" with such things. Ill be happy to walk you through it or provide sketches etc if you feel that would be helpful.

[@holdernewtshesrearin5471]

@@leroyjenkins4811 - im sorry i misunderstood you. In the standard factory new condition no the charging handle does not contact the cheek riser at all. Even extended.

[@jasonbateman1912]

Tried installing this on an Aero Precision enhanced buffer tube kit. The carbine adaptor will not sit flush to the end plate and castle nut at all. Taking it back and just going with the str.

[@tomcat22a]

Can you all make a video on how to put it on a rpr please? There is not a decent video anywhere that i have found

[@cwolf8841]

In step 4, it says install the Vented Mounting Screw. The screw seems too short and won’t screw in?

[@Interpolation1911]

Would this fit the GALIL ACE GEN2 which has the AR15 buffer tube? even the MAGPUL CTR that came with the rifle and .75" riser is not high enough.

[@richardphan6395]

What handguard is used for that rifle?

[@cwolf8841]

Apparently different guns have different width slots. Which is which when I go to order?

[@vicentemaricosta9109]

It is the PRS stock also compatible with Commercial AR tubes or only with Mil-Spec ones?

[@kurt1768]

I just Got one today . I tried to put it on my savage stealth it will not go on its the tube that came with the stealth.I put the first part of the stock on the tube it is very snug and then I slide the stock part on and it’s having trouble. I took the first screw and plug out and took the sling holder off as directed along with loosing the second screw and still won’t fit . I’m not going to try and force it any longer. What is keeping it from installing.

[@Urmel331]

really badly need one of those

[@akbuilder7626]

Unless youre 6'5 and have long arms the stock will be too long to even need the length of pull adjustment.

[@raphaelhanna8345]

Could this buttstock work for rifles that aren't based off of the AR platform?

[@godSPARDA1995]

If I want this on an AK, what kind of adapter would I need??

[@jem13095]

But will it fit on a Daniel Defense MK12 5.56?

[@tarek2006]

What kind of optic is that?

[@danemarley2866]

How high can you take the cheek rest up?

[@joegundry3040]

FYI guys, it doesn't fit on a laRue 7.62 AR. Takes about 3 hours to sand it out because the tube in a laRue is about a quarter inch longer. So buyer beware.

[@alexanderthegreat8067]

what upper or hand guard is that one?

[@Coyote-wm5op]

Hey John, this Magpul “m lok” rail doesn’t lock in this damn expensive stock

[@alexb.6466]

Is PRS Gen3 for AR 15 Jersey legal?

[@HOORAA]

While I do like magpul and the PRS gen II, the gen 3 feels awkward and looks even more funky. Tried it on a friends rifle and we both agreed its a waste

[@benavrahamyitzchak8433]

I can’t see the large price when you consider the Luth-AR is half the price.

[@jbuch66koop]

benavrahamyitzchak I’ve you’ve ever held one, they feel much more substantial than the Luth stock. If you really look around and keep an eye out. You can find these stocks on sale for waaaay cheaper than 240. I paid less than 200 for both of mine, and one was less than 180.

[@tactical-bucket]

Go clean your worthless rifles, poor. Your opinion is meaningless.

[@FandCCD]

Something tells me that’s not John from Magpul.

[@kato4272]

Awesome, now I do not have to buy a tube, spring and buffer to convert a carbine to use this stock, great way to compete with the Luth-AR stock.

[@donewhiskey]

The Gen 3 fits a carbine. 1:14

[@212caboose]

They need to make different thicknesses of butt pad available. Make it an accessory or something.

[@innonativeoutdoors]

Gen 2 > Gen 3 If Magpul left the picatinny rail and cover, it would be a different story.

[@veisslie_4880]

Is there any reason for the 1913 rail on the bottom, since you're mounting anything there besides a monopod which is not a component that needs to retain zero?

[@jmikajr]

I’ll definitely buy this stock thanks ! Any idea what bi pod is on this rifle ?

[@terryderush7066]

Jan Mika Jr I don't know . But I do know that Magpul makes a bi pod now and I think it's a very nice one.

[@ralan350]

They made the same mistake with this as the military did when they went from the A1 yes I am old which fit most people perfectly to the A2 the when they made the LOP longer for people with short arms it is going to be entirely too long to be comfortable which negatively affects your shooting position and they do not offer the thin recoil pad that the gen 2 had which fit me perfectly without extending it at all it is a AR it doesn’t have enough recoil to justify a super thick recoil pad

[@Redlightning1000]

A sexy rifle indeed

[@larrys639]

Show us something useful like the length of adjustment of the cheek rest and butt plate. If you are only moving each 1/4" you prolly cant justify the price of this one......just sayin

[@reallyhappenings5597]

Zero chemistry between these two!

[@TheRedArrowExpress]

Like two noble gases.

[@j5689]

I got the feeling the Magpul guy was nervous so that could be why

[@quadracer9707]

should dudes have "chemistry"?

[@BLUELEADER78]

Still better than Twilight.

[@jtaylorb88]

Neither one can't talk about a product or carry a conversation. Should have never uploaded this worthless video.

[@runrob1]

and they never show how to use all the options like how high the cheek rest goes. waste of my time watching.

[@jtaylorb88]

But they got that awesome shooting range video, holly shit what a horrible video. Both of them should be fired they aren't doing either of their companies a favor by not showing the product or the company in the best light. Whole video comes out forced and awkward.

[@itachi8044]

To bad my cheek won't budge and I own the gun for 1 week

[@FingerJam12]

$250 lol

[@fireyourrocketts]

It would be perfect if it was....LIGHTWEIGHT!!!! read that? LIGHTWEIGHT..got one today and it is going back because it reads 1 pound 11.5/8 oz on the scale, making the rifle that it would go on extremely heavy passing the 10 pounds, so will look for the competition; why so heavy just why?? and do not tell me to compensate recoil, that is a lot of crap, for that we have adjustable gas blocks, buffer systems and muzzle devices...besides being insanely heavy at almost 2 pounds it is also expensive!

[@johndoey6399]

The minimum length of pull on this thing is WAY too long compared to the last generation. I'd never buy one... And oh yeah, this is NOT "new," it's been out for well over a year...

[@Murderface666]

Are you under 5 feet tall? If so, then I can understand your frustration.

[@RekzysTheTitan]

John Doey I would say it’s not long enough.

[@kennethwood713]

$250, o hell just tape on a crutch pad, no build it right for $250