Do you own this gun already?
I bought one last December, only made it through about 150 rds, was a major disappointment.
Mine the trigger was awful, gritty staged multiple places was around 6.5 lb, my shield plus has a far superior trigger and it cost twice as less along with other let downs.
It did nothing that the poly version can't do, but cost an extra 400 bucks.
The competitor is NOT a thousand dollar gun, just isn't. A CZ Shadow 2 cost darn near the same and will run circles around the competitor.
That said, Apex tactical just released some trigger parts for the metal guns. According to Randy Lee, owner of Apex, the poly and metal guns are not compatible parts wise across the board.