This barrel will work in any Mil-Spec AR-10 upper.
The 16" .243 Wilson Combat AR10 Match Grade Barrel uses an intermediate gas system length (Wilson Combat Only 13.25"). The correct gas tube can be found linked below. You will also need a gas 0.750" gas block.
https://www.opticsplanet.com/wilson-combat-gas-tube.html?_iv_gas-system-length=intermediate
Email us at Techsales@opticsplanet.com and let us know what specific barrel you are interested in purchasing, and we can provide you with detailed specs on that specific barrel.
All of the Wilson Combat AR10 Match Grade Barrels feature a .750" Diameter by .920" Length gas block seat. The 20" 6.5 Creedmoor barrel is the only barrel that uses a .875" Diameter by .920" Length gas block seat.
All of the Wilson Combat AR10 Match Grade Barrels feature a .750" Diameter by .920" Length gas block seat. The 20" 6.5 Creedmoor barrel is the only barrel that uses a .875" Diameter by .920" Length gas block seat. The adjustable gas blocks at the link below will work.
https://www.opticsplanet.com/superlative-arms-adjustable-bleed-off-gas-block.html?_iv_gas-block-journal-size-diameter=dot-750-in
the .243 in an AR-10 uses the .308 BCG and has the same bolt face