450Bushmaster.net

Posted: **Fri Nov 11, 2011 10:38 pm**

atomicjoe23 wrote:l will definitely keep you guys posted. . .

. . .this is what I asked for from Satern: 16" 416R SS barrel threaded for a brake (told them I didn't know if it was supposed to be 5/8"-24 or 11/16"-24 thread, but that I would find out), bead blasted (an option they offer) and that the Bushmaster barrel were a 1-in-24" twist (don't know if that's the best, just know that's what Bushmaster uses).

Maybe you guys could help me out with the brake threading (which one is right), the barrel diameter under the handguard, and the barrel diameter at the gas block. . .as this is info I haven't been able to nail down 100%. I know the .50 Beowulf barrels are 0.980" under the handguard and 0.906" at the gas block, but I don't know if the 450 Bushmaster uses the same size barrel or not.

If you guys that have 450's could help me out it could possibly help us out in the long run.

Thanks!

For sure, if you want to mimic the Bushmaster barrel, they use 11/16-24 for the brake. IIRC, the faux gas block part of the barrel is .750. I know because I used it on my 6.5 Grendel build. I can not reach the carbine gas block part of the barrel to measure it without removing the FFT, but looking through the vents in front of the mag well, it looks like the barrel is .980, but I don't know if it is that diameter at the block. They usually put the blocks just ahead of a step-up in diameter. Sorry I don't have more precise dimensions from my 20" barrel.

Hoot

Posted: **Sat Nov 12, 2011 7:06 pm**

Ok, the 450b barrel is one inch coming out of the receiver and is the major diameter. All 450b gas blocks are at the A2 configuration, which is to say they are .750" in diameter.

Hope that helps..

..t

Posted: **Tue Nov 15, 2011 6:44 pm**

Hello all, brand new to the forum and have been researching a 450 build to add to the collection, if any one is interested lothar walther said they could make custom 450B barrels no problem but you just need to supply a bolt the price they quoted was a tad (not to bad though) higher than what Im used to from lothar, but they do make a good barrel,

Posted: **Thu Dec 15, 2011 2:17 pm**

Hi ya'll, long time lurker. First post. Just thought you guys would wanna know.

http://www.midwayusa.com/product/112208 ... te-pre-ban

I'll be accumulating parts. It'll be my first upper build. I've built two lowers so far.

That Larry Potterfield, he loves this stuff.

Posted: **Thu Dec 15, 2011 4:19 pm**

Fixed

Posted: **Thu Dec 15, 2011 4:21 pm**

Bicyclewrench wrote:Hi ya'll, long time lurker. First post. Just thought you guys would wanna know.

[url]Coming soon![/url]

I'll be accumulating parts. It'll be my first upper build. I've built two lowers so far.

That Larry Potterfield, he loves this stuff.

Welcome to our electronic campfire! Pull up a stump! You know the drill... New guy brings the S'mores!
Hey guys, welcome Bicyclewrench to the forum. He's one of the guys over on the 6.5 Grendel forum.

Posted: **Thu Dec 15, 2011 4:23 pm**

Bicyclewrench wrote:Oops the dag burn link.
http://www.midwayusa.com/product/112208 ... te-pre-ban

You can use the edit button now and insert the link where it's supposed to go.

Posted: **Thu Dec 15, 2011 9:33 pm**

Welcome Bicycle wrench. What about the upper receiver, will a 223 work?

Posted: **Sun Dec 18, 2011 10:45 am**

The only part I have questions about is whether the ejection port will be large enough. I know there is at least one video out there of how to enlarge an ejection port to clear for Beowulf. If .50 brass will fit .45 will be easy.

Posted: **Mon Dec 26, 2011 4:29 pm**

Hoot wrote:Double check with MGI, as I thought barrels for their Hydra Modular weapon system, had some unique profiling to accommodate rapid barrel change that is the system's forte.

Hoot

The barrels that I bought came from MGI. Not sure there was anything special about them. I believe they told me the barrels were Bushmasters. They came with the style of gas block that is used on the Bushmasters. The price was $249 each when I bought them.

450Bushmaster.net

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Re: 450B Aftermarket barrels???

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Re: 450B Aftermarket barrels???

Re: 450B Aftermarket barrels???

Re: 450B Aftermarket barrels???

Re: 450B Aftermarket barrels???