Technical information request

Could someone or several fine folks tell me how long the barrel is beyond the FSB on a 10.3/10.5/11.5/12.5" guns? I’m looking at options for mounting a light, specifically the Mosie tactical mount that sits atop the barrel(clamped to the FSB) and would like to know if an x300 or TLR1 would fit without protruding beyond the flash hider.

MM

Nope. I had it mounted on a 12.5" and it sits directly above the flash hider. It didn’t cause any issues though because it is mounted solid. It also didn’t cause issues the lense.

Good to know thanks.

MM