There is nothing on the market that compares to this product.
Vision Impulse, Delrin Bolt from SP's, Volumizer by Toxic Toys, Kapp Gas-Thru Grip, "I" Frame, Delrin Valve, SS Hammer, Max-Flow 45/4500, Freak Barrel
John put alot of thought into this Frame. It takes the place of two parts on your stock Impulse, The grip frame and solenoid housing, Shortens the height by about 1/2 inch, and Moves the grip an inch forward to make the gun more balanced. The trigger is FULLY Adjustable, which is sweet. It has a blade trigger which feels good in combination with John's "humped" frame. Overall I think it is well worth the investment.