Primary Weapon's piston system.

[Boom]

Interesting system. Anyone know if they are going to build one with a sight tower /gas block combo?

Per the web site it appears they do not want a railed forearm over their gas block.

[Robb Jensen]

Interesting system. Anyone know if they are going to build one with a sight tower /gas block combo?

Per the web site it appears they do not want a railed forearm over their gas block.

Their gas block has a rail (same height as the upper receiver) so no rail will fit over one. I send the 9.5FSB DD Lite Rail with my Colt 6920 upper. It'll look like a rail over model but it's they gas block rail is even with the receiver and DD Lite Rail. I'll be mounting a LMT MRP front sight onto mine.

[Boom]

Their gas block has a rail (same height as the upper receiver) so no rail will fit over one.

I missed that thx.

I send the 9.5FSB DD Lite Rail with my Colt 6920 upper. It'll look like a rail over model but it's they gas block rail is even with the receiver and DD Lite Rail. I'll be mounting a LMT MRP front sight onto mine.

Should be interesting to see. Please let us know how it turns out.

[recon]

So we have to send our upper to you or can we do it our self? Looks good!

[Robb Jensen]

So we have to send our upper to you or can we do it our self? Looks good!

You have to send them your upper.

[k9dpd]

Has anyone done one of these conversions with a 10.5 LMT barrel.