All current information released on the KWA M4A1. Basic information:Internals
Reinforced version 2 gearbox
8mm Metal Ball Bearing Bushings
Aluminum Piston Head
Metal Spring Guide with Bearing
High Torque Motor
16 gauge Wiring
2 piece hop upExternals
Same metal content as real steal
Strong and light weight aluminum receiver
Functioning dust cover
Moving mock bolt when you pull on the charging handle
6 position LE stockSpecifications
150 Feet range
30.5 to 33.75 inchesROF with M120
8.4v Mini - With a 8.4v mini battery this AEG is capable of putting 16 bb's a second down range with the M120!
9.6v Nun Chuck - With a 9.6v you can expect to be sending down 20 bb's a second, and to think were not even to the LiPoly!
10.8v Battery - Won't fit...
11.1v Lipoy - Let's just say, this should never be legal! With LiPoly your M4 will be spitting out roughly 25 bb's a second, again guys, this is with a M120 spring. Imagine a M110? [LiPoly guide being created]
Sources:Owners ManualImporters takeShortyusa