I've got an Armalite AR10A4 and the barrel is a wee bit heavy. This is one of the 20" heavy profile barrels before Armalite switched to a government profile barrel. Has anyone sent their stock barrel off to ADCO to have them flute it under the handguard and forward the gas block? Did you notice any accuracy degradation after fluting or was everything fine. What was the amount of weight reduction obtained? Please let me know. Thanks.