6 ARC Upper Build: 18” PVA Osprey (Rifle +2”) + San Tan Tactical Billet Upper + SOLGW M89 Rail

[WeR0206]

I previously had this barrel on a different upper during break in but wanted to switch to a San Tan upper for this build.

Barrel specs:

• Weight: 42.8 oz
• Gas port: 0.093”

Build notes:

• Zev 7.62 Flash Hider/Compensator ($29)
• CMT .750 JAG Set Screw gas block ($25)
• White Oak Rifle +2” Gas Tube ($17)
• Osprey 18” 6 ARC Rifle +2 barrel ($399) (+$125 with headspaced Rubber City bolt) (Total: $524)
• Rubber City M-16 Blacknitride+ Bolt Carrier ($80)
• San Tan Tactical Billet Upper ($175) (thermofit)
• SOLGW M89 15” Rail ($330)
• SOLGW Ambi Charging Handle ($80)
• Total: $1,260

I already have about 150 rounds through this barrel and shot a sub moa 10 shot group during break in (zero load development)

 

[WeR0206]

Barrel has been mounted in thermofit upper, I used a 1200 watt heat gun on high for 90 seconds to warm the upper threads up before sliding the barrel in. Still need to mount it on a URR & torque the barrel nut but I will be out of town until 8/5. The San Tan billet upper is too tight to fit my URR so instead I will use a magpul bev block

 

[sparky702]

I would be interested to see how this turn's out . I am considering building a 6 arc

 

[Redlion]

I do not yet have a 6mm Arc, but interested in building one at some point. I know nothing about Osprey barrels? They certainly appear to be quality. Where do they rank in the realm of quality? Accuracy?

 

[WeR0206]

I do not yet have a 6mm Arc, but interested in building one at some point. I know nothing about Osprey barrels? They certainly appear to be quality. Where do they rank in the realm of quality? Accuracy?

They are made by Josh (@bohem) at Patriot Valley Arms. I love mine so far and they seem to be near universally loved on this site with many others besides myself getting good results. They come in AR barrels, shouldered prefits, etc.. I don’t own any “premium” cut rifled barrels to compare to (proof, bartlein, etc.) but I do own Geissele, craddock RTR, and criterion AR barrels and the Osprey is probably the nicest of the 3 re: machine work, accuracy, etc..

Here’s some more info on them:

https://patriotvalleyarms.com/osprey-barrel-works/

 

[bohem]

I do not yet have a 6mm Arc, but interested in building one at some point. I know nothing about Osprey barrels? They certainly appear to be quality. Where do they rank in the realm of quality? Accuracy?

The Ospreys are gaining in popularity because the performance, price and availability has been very good. We're not perfect, but I think we're doing a lot more right than wrong.

Here's a thread on the announcement of the AR15 options from PVA last summer. @padom just picked up a 6mm ARC barrel to test out as well, he posted pictures of the 16" 223 Wylde barrel that he got last summer.

PVA now offering AR15 barrels!

Josh @bohem from Patriot Valley Arms posted up on Facebook that he is now offering Osprey match grade AR15 .223 Wylde barrels in 16", 18" and 20" length. Anyone who has used the other Osprey barrels knows that they shoot so I don't expect anything less from these barrels. Worth a look if you are...

www.snipershide.com

 

[Redlion]

I appreciate the information.