I suspect less steps in machining coupled with plastic stock. I've had one for about 10yrs. and it will shoot groups at 50yds. that you can cover with a dime. I'm still amazed with its' accuracy. All from a rifle that cost me $130.00 not including my Bushnell 3x9 scope ( I tossed the 4x scope that came with the gun).Why is this rifle so inexpensive?