Odin works pistol buffer tube vs BCM pistol buffer tube.

[heavygunner8]

The Odin works has the extra stop to make the sig tac brace not move back and forth or side to side during firing, but it is 6061 where as the BCM is 7075 but doesn’t have the stop to make the brace slide around. I’ve linked examples of both below. Any comments and thoughts are appreciated.

Bcm: https://www.bravocompanyusa.com/BCM-...tol-re-kit.htm

Odin works: https://www.odinworks.com/Stabilizin.../acc-sb-pt.htm

[heavygunner8]

I’m planning on building a pistol with the Daniel defense mk18 upper. Would I run into any issues using the Odin works pistol buffer tube with sprinco blue buffer spring and an H2 buffer weight?

[joeyjoe]

I don't own any AR pistols so i can't comment on the potential benefits of certain tube designs over others. However, regardless of the presence of various design advantages, i would never consider running a carbine receiver extension that wasn't 7075 aluminum.

[MistWolf]

Corycop25 and I were comparing notes about running shorty ARs with A5 REs and the Sprinco green spring. Get the VLTOR A5 pistol RE, 5 oz A5 buffer and green spring.


https://www.vltor.com/shop/accessori...5-pistol-tube/

[heavygunner8]

Corycop25 and I were comparing notes about running shorty ARs with A5 REs and the Sprinco green spring. Get the VLTOR A5 pistol RE, 5 oz A5 buffer and green spring.


https://www.vltor.com/shop/accessori...5-pistol-tube/

nice, i like the protruding ring to stop the pistol brace from moving forward on this one.

https://www.opticsplanet.com/vltor-a5-pistol-kit.html

I found them on optics planet in stock. Pretty expensive for a kit with no castle nut and end plate. Any recommendation on which castle nut and end plate to go with? the buffer weight is 5.3 OZ it says, is that good to go for the MK18 even if I want to attach suppressor later?

Edit: never mind, the description says the lock nut and lock plate is included.

[heavygunner8]

Would the BCM pistol buffer tube kit with H2 buffer weight work well for the mk18, if I go that route instead?

[MistWolf]

If the gas port isn't too big, the A5 should work fine. Cory has a 12.5" suppressed with the A5, 5.3oz buffer and Sprinco green spring and says recoil is nice and soft.

I have an 11.5" suppressed Colt. With the carbine RE and H buffer, recoil was sharp. Changing to the A5 RE 5.3 oz buffer took the sting out of it, but I'm going to try the green spring. It should help even more.

I have another suppressed AR shorty (a pistol I call the Wolf Pup) with a carbine length RE and H buffer. It uses an adjustable gas block and it's a soft shooter. I dropped it on the A5 lower and it shoots even better. Enough that I plan to get the VLTOR A5 pistol RE for it.

Would the BCM pistol buffer tube kit with H2 buffer weight work well for the mk18, if I go that route instead?

I think you'll be happier with the A5. It just makes things a little smoother. The more I push the envelope with short barrels and suppressors and play around with tuning, the more noticeable the advantages of the A5 become. It's better starting point.

[heavygunner8]

Thank you for the recommendation. I think I will go with the BCM tube kit for now. I read that DD sells their mk18 sbrs with an H buffer, so I figured the H2 should be fine. I’ll test it and see how it feels if things doesn’t go well, I will definitely go the vltor a5 route. I think for pistol brace the KAK shockwave blade pistol brace seems like a good choice. It has a screw on the bottom to tighten the bolt, so that the brace doesn’t move around due to recoil. The ATF recently clarified shouldering a pistol brace isn’t a crime anymore, so that’s a relief lol.

[5.56 Bonded SP]

I don't own an AR pistol, so hopefully this is relevant, but I am under the impression that pistol lengths eat through parts like extractors really fast. So I would try to get the best made parts possible. I've heard bad stories about 6061, but it was all hearsay, so maybe those bad stories were just BS. Odin is a solid company, I'm sure the part would run fine.. Personally I would opt for the BCM given it is 7075.
Here is a quote I read.

6061 is half the strength of 7075. Its cheaper and easier to work with and tools last longer. That's why companies want to use it.

Commercial tubes are THICKER to compensate for the fact they are generally made of the lesser alloy.

Tru milspec is the small size AND 7075.

ETA: By pistol, I mean pistol length gas system. Also, if your barrel is 10'' or longer I would go for carbine gas length over pistol length.

[MistWolf]

I think for pistol brace the KAK shockwave blade pistol brace seems like a good choice.

The Shockwave has a thin fin to put against your shoulder. It's going to get uncomfortable quick.

I use the SB Tactical SOB. It has an internal stop, so it won't move forward under recoil. I used the Galil version, so I had to wrap the RE with gaffer's tape so the brace would fit tightly, but it's been worth the money and effort. It's a bit short with a carbine RE but very usable. LOP will be better with the A5 RE. With a rifle RE, it's just too long.

The AR version is available at Midway- https://www.midwayusa.com/product/10...ng-brace-ar-15

This is what it looks like on the Wolf Pup with the carbine length RE. Click on the thumbnail to view larger photo
wolfpaint004_zpsbjk2mapx.jpg

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