Originally Posted By swatbwana:
SBR barrels at 8-11 inches are great and need a pistol gas system.
You need to fill out the SBR paperwork and get it approved and in hand with tax stamp before you have the upper and lower in the same area.........
anything under 16 rifle requires an SBR stamp before you make it...
16 inchers work well with a carbine gas system
My DSA stainless barrel upper was inexpensive and accurate
You left out the $200 for the tax stamp.