Good value piece - Presma AR-15 .223 Barrel Vise Block Rod w/ Torque Block for .750 Barrels

I bought this for the purposes of removing and installing muzzle devices without twisting my receivers and honestly expected less for the price. Its just a aluminium tube with a billet or possibly steel head pinned into the end that sticks in the breech lugs but it is plenty strong enough for my purposes of removing/installing & timing muzzle devices. I feel it would work for barrel installation although If I were building a more precision directed rifle I would go with one of the solid steel ones that are much more expensive. But for the average budget ar build and maintenance purposes not requiring perfect precision or unlikely to see constant use and abuse this does the job for 1/3 the cost. So far I have used it to remove flash hiders and install muzzle brakes on 6 barrels and 3 of them were heavy profile 450 bushmasters and took a good bit of force to do and the tool held up fine.