Just like the 98C, it is offset to the right. It is mounted on the upper picatinnany rail and slides back or off when needed. BT-4 accepts all 98C stocks, and since it uses military rails both on top and bottom, you can use real gear on them. Your barrel receiver that comes stock with the BT-4 is A5 threaded so you can get any A5 barrels or BT-16 barrels for the BT-4, however, you can get a different receiver and mount spyder barrels, etc, or whatever receiver you choose. The BT-16 uses 98C threaded reciever, but the feed tube is dead center of the marker body. Real bad if you want to sight straight down.
Hey anyone who plays woodsball can't put down the original reason why we buy these markers made and designed by the Tippmanns. They take a beating and keep coming. I just don't see why I should pay more for the same or better morker just because of the nameplate on the side. If you want to go speedball or woodsball, the BT-4 Combat is your best bet, if you can go for low $200.00 and play woodsball strictly, you can should get the Assault because you save about $150 dollars on all the stock upgrades. Its like getting the 98C Commando with a better barrel. However the Combat is easily upgradeable, just like the 98.
This post has been edited by Tomcat: 17 August 2006 - 02:25 AM