some of the slide fire kits come with a front ported flash suppressor to aid in recoil impulse . I am waiting for the s&w 15/22 kit to come back in stock from grabagun in Coppell it has the stock/trigger/suppressor in one kit
they do have this 10-22 kit in stock:http://grabagun.com/slide-fire-ssar-22-rh-kit-blk.html
Outfit your Ruger®10/22® for the ultimate rapid fire experience with the SSAR-22 Kit. It includes an SSAR-15® OGR stock, 3lb pull trigger, and Tactical-22™ chassis. The 3lb Trigger is optimized for rapid fire action and the 10/22® chassis system is designed to enhance the functionality and aesthetics of a standard RUGER 10/22® rifle. This is more than an addition, it's a complete overhaul on your rifle.