The Umarex H&K Licensed MP5A4 features a 3-round burst function that is paired with the famous VFC self-shimming gearbox. Available at Airsoft Megastore.
Airsoft GI - Umarex H&K MP5A4 by VFC Gun Review and Internal Gearbox Examination
Elite Force HK Heckler & Koch MP5 A4 Elite Series AEG Automatic 6mm BB Rifle Airsoft Gun : Sports & Outdoors
Elite Force H&K Full Metal MP5A5 AEG Airsoft SMG by VFC
Umarex Licensed H&K Full Metal MP5A5 3-Round Burst Airsoft AEG Rifle
HK MP5 A5 Competition 9mm Kit - AEG – Airsoft Atlanta
Umarex H&K MP5 A4/A5 Competition Kit SaltyOldGamer Airsoft Review
mp7 Archives - Airsoft GI TV Blog
Hk Mp5 A4 Aeg Airsoft Rifle
Umarex Licensed H&K Full Metal MP5A4 3-Round Burst Airsoft AEG Rifle
Elite Force H&K UMP GBB Airsoft SMG by VFC
Umarex Licensed H&K Full Metal MP5A5 3-Round Burst Airsoft AEG Rifle
H&K Elite Series MP5A4 Airsoft AEG Rifle w/ Avalon Gearbox by Umarex / VFC (Model: Gun Only), Airsoft Guns, Airsoft Electric Rifles - Airsoft Superstore
Elite Force H&K Full Metal MP5A5 AEG Airsoft SMG by VFC
Airsoft GI - Umarex H&K MP5A4 by VFC Gun Review and Internal Gearbox Examination