Installing the Magpul Moe Fixed Carbine Stock

MistWolf

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The CTR stock, particularly with the Enhanced Recoil Pad added, is much more comfortable than the M4 style stock. But my cheek is half on the stock and half on the RE tube. With each shot, it felt like there was a little sting, just enough to be annoying. I wanted a stock with a more comfortable cheekweld. As much as I like the UBR, it's expensive and heavy. The MOE rifle stock would require swapping out the RE and adding either doing something clever with the buffer & spring or adding a spacer.

The MOE Fixed Carbine Stock however, is another story. It has a full length cheekweld and simply clamps to the carbine RE and it looked like I could swap the Enhanced Recoil Pad over. It's also cheap. I found one at the LGS my wife gave me a gift certificate for and bought one in FDE. Off came the CTR to go back on my AR carbine and on went the fixed carbine stock. Installation is as easy as it gets. It comes with two caps, one for a standard RE plate, the other for the ASAP. Slide on the cap you need, then the stock, pushing everything as far forward as you can. Install and tighten the cross screw and viola'! Done!

Problem is, the fixed carbine stock has a really short length of pull. I pulled it as back as far as I could but with the first shot, the whole assembly will slip forward again. The second problem is the fixed carbine stock uses a different type of buttplate and the Enhanced Recoil pad won't fit. Contour looks to be a bit different and the hole spacing is changed. I like Magpul gear I have to ask- What were they thinking? It would make more sense to make the recoil pads the same.

I went to the hardware store and bought a length of 3/4 PVC tubing and cut it just long enough to fill the space between the stock cap and the end plate. I made a split in the tube so I could stretch it over the RE and slide it all the way up to the end plate. I fitted it so there was just enough room to slide the cross screw into place. The spacer was given a rough contour job to match the cap. I didn't take into account the fact that the threads of the milspec RE are a little larger in diameter than the tube, so when the finished spacer was slid into place, it stood a little proud. That's okay, the charging handle clears it and it gets the job. I hit the spacer with a bit of paint so it would match. I didn't take any photos while I was fabbing the spacer, but here it is painted and installed.
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The LOP is still shorter than I'd like, but the cheekweld is much improved. I'm going to look for a generic recoil pad to fit to the stock which will soften the recoil more and hopefully increase the LOP enough. If not, I'll make a longer spacer and cut a groove in the RE for the cross screw.

As it turns out, the painting didn't stop with the spacer. First, I painted all the black parts with Krylon Khaki, then got two darker shades and added them. The idea for the paint job came from the wolf. Wolves are stealthy and hard to spot when they are hiding. Their coloration is very pale underneath and darker on top. That's what I went with. I didn't get exactly what I wanted, but I'm no painter and at some point, you have to just stop and let the paint dry. Still, I really like how it came out. The bottom is very light and as the rifled is rolled to it's side, then to the top, it looks like a shadow is making it darker.
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Not your usual camo job, but I think it'll work and it's certainly better than all black
 
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Great write-up, sir. :)

I was having problems with the cheek weld on the MOE stock that came with my M&P15TS. I replaced it with the Magpul ACS, which has an unusually wide cheek weld due to the battery storage tubes on both sides of the stock. The widened cheek weld is very comfortable, and the 3 storage compartments are very handy for holding tools, ear plugs, batteries and spare parts.

DSC02536.jpg
 
I know lots of shooters like the ACS and similar stocks, but my problem is my face hangs halfway off the front of them and I'd be right back where I started. I need a longer cheek weld. The CTR stock works fine on the AR carbine because my face sits up higher to see through the 1/3 co-witness mounted Aimpoint and the recoil is less with the 5.56.

I'll just have to track down a recoil pad and make it fit & see how things work out
 
When you painted the plastic parts, did you have to use some sort of etching primer or scrub on the parts, or were you able to get the Krylon to adhere by just cleaning/degreasing? I've been thinks about airbrushing some non-reflective colors on to my rifle.

On the carbine stock length, I've been wondering how much length one of those folding stock adapters might add to a rifle. It's not a cheap option, but it does add another dynamic to stowing the M&P 10 in smaller gear bag.
AR Folding Stock Adapter
 
apicola, I used a diluted solution of Purple Power on all the parts, scrubbing with a clean white cotton rag. They were rinsed with hot water and dried with compressed air. The Krylon I used said it bonds to plastic. Only time and use will tell how durable the paint job is. I figure I can always hit it with some spray paint again if it gets too scruffy looking
 
Many thanks. I am going to give it a try. Back during Halloween I tried painting some art on some plastic trash bins. I had pressure washed them and then cleaned the cans by hand with Simple Green before I painted them.The paint dried and seemed to cure properly. Two weeks later, the painted art peeled right off ... it seemed like there was some oil that seeped from the pores of the plastic or something.
 
There are different types of plastics. Like the toy Army-men I had as a kid. Paint wouldn't stick them no matter what I tried!
 
Pretty excited to take the Big Smith out for the first time since installing the MagPul Fixed Carbine stock to see how well it works. The night before I took BCG out, cleaned it up and slathered it liberally with FrogLube. When I got to the range, I started by loading a single round of German MEN into the MagPul 20 rounder and fired it. The BCG locked back smartly. Same for the next 4 singly loaded rounds. I then loaded up 5 rounds and fired them off. No malfunctions. Loaded the mag up and tried a couple double & triple taps. Again no malfunctions. This is with the carbine weight buffer & factory spring.
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The BABC definitely works better at keeping the muzzle flat than the factory suppressor and is shorter and lighter. Recoil is much more manageable for faster shot to shot recovery. I'm liking this rifle more and more.

The LOP on the fixed carbine stock is still a bit short but no more stinging face slap. I've got plans to lengthen the stock a bit and if worse comes to worse, I'll invest in a cantilever scope mount and push the scope forward.

So it's good news! We're on the right track with the stock and the rifle is functioning much better with NATO pressure ammo than it was before. Two changes, however- Froglube and warmer weather. Not sure which one did the magic. Hopefully we'll be able to pick up a couple boxes and see how the Big Smith really performs. It shouldn't be too long before she's ready for the coming hunting season
 
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MistWolf, I highly recommend the Leupold Mark 2 Integral Mounting System. I have three of them. It will defineitly allow you to move that scope forward. The height is also good, at least for me.
 
The Leupold mount system is a good one, but if I do get anything, it will be the one Aero Precision cantilever mount
aero_precision_standard_scope_mount_940x300_1.jpg


It's light, strong and at $85, it's a darn good bargain
 
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