Originally Posted by BloodSport
P90 + M16 length barrel + silencer.
I did exactly that and it was a huge improvement accuracy wise and even a slight fps gain. Still didn't care for the ergonomics of it but I bought it as a spare bullpup while my Tavor was being repaired, again. Sold it to my friend, as was the plan all along, once I got the tavor back. My groups tech shimmed her up and that Echo1 p90 sounded just sweet. Still does, the guy who bought it has been using it without issue for 2 seasons now and He loves the ergonomics. He's 6'1'' I believe.