Barrel Gas Port Size,308/338/260/243 etc.

[98Z5V]

9 hours ago, beamonk said:

DPMS GII. What is the recommended gas port size?  260 Remington 20" barrel.

Thanks

Also, what are your specs in the recoil system?  The gas system and the recoil system need to be balanced, for the reliability of the weapon.  Receiver extension internal depth, buffer weight and length, coil count and relaxed length on the buffer spring.  Mandatory information, for accurate information back to you, to make your rifle reliable.

[beamonk]

i"ll report back!

[MarkLeupold]

X-Caliber Barrel & Manufacturing

18" rifle length gas system, 6.5 Creedmoor, AR10 HBAR contour (.750" gas journal)

Port is .081" or .082" when you choose their "default gas port" (the other option is slightly oversized for use with an adjustable gas block)

Runs just fine on a JP FMOS BCG, A5 extension, H3 buffer, and Tubb's AR-10 Flatwire spring