Machined metal alloy construction

The finish is anodized matte black to protect the rail system from rust and light scratches depending on the environment

The Echo 1 combat sight set easily flips down when you want to utilize an optic for better target acquisition

metal barrel assembly

Material: Stainless Steel

AW Custom Drum Magazine for Gas Blowback Airsoft Pistols & Rifles - for SAI BLU / Elite Force GLOCK (Black/Red) F2000 Machined metal alloy constructionFeatures Injection molded polymer body is lightweight but can withstand the rigors of field use Easy to use winding mechanism ensures proper feeding 400 round capacity Metal magazine stem Easy to fill design Provides more firepower than standard extended magazines Huge gas reservoir Specifications: Material: Polymer, Aluminum AlloyCapacity: 400 roundsGas Type: Green GasCompatibility: Elite Force, UMAREX GLOCK and other GBB Pistols w VFC Blowback