Firearm purchases require a background check and must be picked up in person by the purchaser
SBR transfers will not be accepted 
Here are some specs for the Norinco SKS 7.62x39mm:
Ammunition: Uses 7.62x39mm ammunition, the same as the AK-47 
Rear sight: Adjustable open notch sight with an elevation range of 100 meters to 1000 meters, and a "battle" setting for 300 meters 
Cleaning kit: Stored in a trapdoor in the buttstock, with a cleaning rod that runs under the barrel 
Field stripping: Can be easily stripped and reassembled without special tools 
Magazine and trigger group: Can be removed with an unfired cartridge or the receiver cover 
The 7.62x39mm cartridge has the following specs:
Cartridge case capacity: 2.31 mL (35.6 gr H2O)
Rifling twist rate: 240mm (1 in 9.45 in)
Number of grooves: 4
Ø lands: 7.62 millimeters (0.300 in)
Ø grooves: 7.92 millimeters (0.312 in)
Land width: 3.81 millimeters (0.150 in)
Primer type: Usually large rifle, but commercial Remington/UMC brass uses small rifle primers