My 4.3 build internals, IM OPEN TO TRADE FOR FULL HPA BUILD WITH TANK, REGULATOR & LINE Sanctus customs silver aluminum slide $153 4.3 tm frame $35 Cow cow grip (stippled myself) $21 Airsoft masterpiece threaded outer barrel (silver) $150 Cow cow thread adapter rm1 (silver) $22 Maple leaf crazy jet 6.02mm barrel w hopup & 80 degree bucking $61 Aip 125% recoil spring $8 Cow cow short stroke $12 Aip 4.3 guide plug $14 AIP guide rod $30 Cow cow tech cnc aluminum bbu $55 Guarder loading nozzle $25 AIP 140% nozzle spring (set of 3) $17 AM silver safety $75 Magwell $40 Cow cow tunable trigger $15 Total spending $733 only in upgrades Total spending with gun base included $878 Message me for any info, shooting vid or more pics provided if requested