Both models have an accessory side rail as well as a top accessory rail for optics and other weapon attachments

Magazine Capacity: 21+1 rounds

T6/T8 Socket Head Wrench x1 (in the package)

FINE DUST AND SOME CHEMICAL SPLASHES

It may has a condition that your pistol cannot feed the BB bullet due to lightweight gas supply

HFC Full Metal T77 Mac11 Select Fire Airsoft Sub Machine Gun madbull Both models have an accessoryFPS Range: 300 330 Color: Black Features: High Strength Polymer Outer Shell with Metal Internal Housing Full Metal Reinforced Internal Blowback Unit Cyclic rate of up to 20 rounds per second Steel Retractable Stock with Folding Shoulder Rest Full Metal Barrel and Charging Handle On Frame Safety Switch Self Locking Bolt locks when out of BBs Hard sided transport case included Length Retracted: 250mm Length Extended: 450mm Weight: 1580g Inner Barrel: