I'm with kirknd4spd.

I have a 12" Lapco Bigshot on my A-5. Didn't increase my range, but sure tightened up the grouping. Worth the investment, in my opinion.

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Yeah, well I'm gonna build my own paintball field! With blackjack aaaaannd hookers! Actually, forget the paintball field, and the blackjack. Ahhhh screw the whole thing!