stainless 18" rifle action barrel?

[mstennes]

Ok heres my plan, I have a 20" DMR, I plan to swap out the barrel on it to 6.5, my question is, who makes a rifle action 18" barrel? I have looked at allot of different barrels but all seem to be mid action in the 18" and rifle in the 20". Adams has a nice 18" that is fluted but its a mid sytem, he does not offer that (fluting) in the 20, which imo, would help drop the weight quite a bit, as my DMR, is quite a bit less than my old Hbar.

[m796rider]

I bought a 20" and had Adco Firearms cut it down to 18.25" and thread 5/8x24. This gives you a rifle length gas system, access to the wide world of .308 muzzle devices, threads that are guaranteed to be concentric to the bore (important if you're going to mount a suppressor), and a really nice muzzle crown. I have only fired Hornady 123gr Amax factory ammo from my rifle, but I can report that the rifle works perfectly and throws brass to my 4 o'clock about 6 ft away. One suggestion: make sure your upper receiver has extended feed ramps; this feature enhances the reliability of the bigger bore AR calibers like 6.5G and 6.8SPC.

Here is the rifle with a standard flash hider:


And here it is with a Surefire suppressor (reflex-type):

[Drifter]

Check Black Hole Weaponry.

Also, Satern will probably make whatever you like.

[bwaites]

Check Black Hole Weaponry.

Also, Satern will probably make whatever you like.

Both chamber the LBC .264, although either might chamber the Grendel in the near future.

[mstennes]

I bought a 20" and had Adco Firearms cut it down to 18.25" and thread 5/8x24. This gives you a rifle length gas system, access to the wide world of .308 muzzle devices, threads that are guaranteed to be concentric to the bore (important if you're going to mount a suppressor), and a really nice muzzle crown. I have only fired Hornady 123gr Amax factory ammo from my rifle, but I can report that the rifle works perfectly and throws brass to my 4 o'clock about 6 ft away. One suggestion: make sure your upper receiver has extended feed ramps; this feature enhances the reliability of the bigger bore AR calibers like 6.5G and 6.8SPC.

Here is the rifle with a standard flash hider:


And here it is with a Surefire suppressor (reflex-type):

Dang, that is real close to my set up, I have the M4 feed ramps on my upper, I'm running a Danial Defense 14" front rail, with a PRS stock, but from the looks of yours maybe I should do a DD 12" and swap out the PRS for my SOPMOD needing a home. What scope setup are you using? I'm setup now with a Mark 4 3.5x10 TMR reticle, with a M262 cam/turret. I used ADDCO before and their work is top notch! Looks like the way I need to go, especially since I plan on using my AAC 762SD.

[m796rider]

Dang, that is real close to my set up, I have the M4 feed ramps on my upper, I'm running a Danial Defense 14" front rail, with a PRS stock, but from the looks of yours maybe I should do a DD 12" and swap out the PRS for my SOPMOD needing a home. What scope setup are you using? I'm setup now with a Mark 4 3.5x10 TMR reticle, with a M262 cam/turret. I used ADDCO before and their work is top notch! Looks like the way I need to go, especially since I plan on using my AAC 762SD.

I'm using a Nightforce 3.5-15x50 F1 FFP mildot/mil zero stop scope in a Nightforce 1.375" Unimount.

I've used the PRS on a couple of rifles, and don't like the weight or bulk. The LMT SOPMOD has great cheekweld, but I've settled on the Magpul ACS because it is a bit better for prone shooting (the shape is easier to grasp with my support hand).

You will LOVE shooting your Grendel suppressed...

[txgunner00]

Which suppressor is that? 7.62 or 6.8"

[m796rider]

Which suppressor is that? 7.62 or 6.8"

6.8

[LRRPF52]

Surefire used to carry a 9/16 break for their cans, then dropped it for some reason.

[jwilson1985]

we ofer that barrel its on my grendel just look at our site and i have plenty of pics just check my posts

[mstennes]

we ofer that barrel its on my grendel just look at our site and i have plenty of pics just check my posts

I guess I'm blind, I'm not seeing a 18" rifle action barrel on your sight, I see a mid action, but no rifle.

[jwilson1985]

any reason you want rifle we have found mid to be faster and mor reliable but we can do a rifle length if thats what u really want

[mstennes]

any reason you want rifle we have found mid to be faster and mor reliable but we can do a rifle length if thats what u really want

Unless the 6.5 is different than the 556 I have found no difference in the two actions on barrels in the 19-20 inch range for reliability, I have built SPR's in both and actually found the mid slightly over gassed and the rifle with a better ballistics. I was seeing a difference of about 8-10 fps less on a 18" rifle vs a 20" rifle, where I was seeing about a 40fps difference between a 18 mid and a 18 rifle. I also never saw any reliabilty issues, I even tried it at 5* one time.

[LRRPF52]

Yes, I prefer a rifle-length gas system in an 18" barrel, since the mid/18" seems over-gassed to me as well. You definitely need an adjustable gas block if you are pushing your loads with a mid-length system due to the added dwell time. A rifle-length gas with an adjustable gas block gives you a sweet envelope of being able to tune the system with hotter loads.

[m796rider]

Yep, no problems at all with my 18.25" rifle length 6.5G barrel. In fact, when shooting with the can on it is slightly overgassed - but nothing that worries me. Admittedly, I have only shot Hornady 123gr Amax factory ammo through my rifle.