Assembled from a Bravo Company M4 upper and one of AR Performance's superb 12.5" 5R 6.8mm SPC barrels. Comes with a properly headspaced NiB Superbolt also from ARP. I had an A2 front sight post taper pinned to the barrel but decided to go low profile and modified the fsb to fit under a free float handguard. It will fit under an ALG rail and probably others but will be tight in some of the super slim rails. Might need further modification. Regardless, I really like it being taper pinned.
I test fired it using 115gr Federal AE and it cycled perfectly with a Barrett and ASC magazine. Empties landed between 3 and 4 o'clock using a standard carbine buffer, spring and M16 carrier.
Upper is complete except for charging handle and carrier. You get the barreled upper with bolt only. No muzzle device but I will include the thread protector. Fit is perfect with Anderson lowers.

About 100 rounds total through the barrel.

Asking $350 shipped. That's pretty much just what I have in parts. Nowhere near what I have in labor and time spent.

Money order, personal check and PP F&F accepted.

Feel free to ask questions.

Just a reminder, this can only go on an AR pistol or an SBR.

Let me know if you need to see more pictures.

Yes, it is a mid-length gas system. Very smooth shooting. Can't believe you're not shooting a 5.56mm.

Bump.....

A couple more pictures.

And to answer some questions. Yes, the gas block can be removed by just driving out the taper pins. Then you can install a true "low pro" gas block. You can't install a new front sight block and expect the pin holes to line up. FSBs are installed on the barrel when new and then drilled. If you try to install a new FSB on an already drilled barrel it will not line up correctly. You're just better off leaving this block as is or installing a low profile unit. Then you can go with a free float tube of your choice. But I think this pinned block will fit under a lot of rails out there. Just take good measurements before you buy.

Still available.....

For those concerned, 224 Valkyrie magazines also work for the 6.8mm. Makers include ASC, CPD, Barrett, PRI, D&H, E Lander, and a couple others I can't think of. So, don't let magazine availability concern you. No, you can't have mine;)

Price drop to $285 shipped. Sold the bolt to a buddy who needed it for his 6.8 build.

So, you get the barreled receiver with no bolt, carrier or charging handle.

Still available...

Sunday bump....

SOLD!!!!

Thanks guys.....