Be Adaptive sells a gun mount called the HQ100 that attaches to your chair and comes with all the accessories you need to shoot a rifle, shotgun or crossbow. They even have a rig for a compound bow. I believe they are the most popular and wide-selling on the market today. They offer a bite trigger and a sip-n-puff style trigger. Check out their site to see a full line of their products at BeAdaptive.com. Call 260-244- 4953 or email email@example.com.