Operator's Manual
HOP–UP SYSTEM
The Hop-Up device is one of KWA’s standard features, giving Airsoft BBs greater stability,
further travel and increased accuracy. Airsoft BBs are light-weight and can be affected
by wind when red. With the Hop-Up system, the trajectory of the Airsoft BBs can be
adjusted according to the shooting environment or surroundings.
HOP-UP ADJUSTMENT
• Pull the charging handle to the rear to open ejection port and reveal Hop-Up
adjustment dial. Pull and hold the charging handle to the rear when adjusting Hop-Up.
• Turn the Hop-Up adjustment dial forward to increase hop-up. Turn the Hop-Up
adjustment dial backward to decrease hop-up.
• Excessively turning of the Hop-Up adjustment dial forward can cause Airsoft BBs
to jam. Continued ring with a jammed barrel will cause damage to the gearbox.
• When jamming occurs, immediately stop shooting and turn the Hop-Up adjustment
dial backward to decrease hop. Remove the jammed Airsoft BBs.
Before removing the jammed Airsoft BBs, be sure to return the hop-up adjustment dial to
normal position. After removal of Airsoft BBs, test re 2 – 3 rounds to check for clearance.
Resume adjustment. KWA Airsoft guns are made with precision barrel, use only new,
quality Airsoft BBs. The use of recycled or low quality Airsoft BBs are the primary cause of
jamming. In most cases, it can severely damage the gearbox and inner barrel.
Excessive Hop – Airsoft BB travels an upward trajectory path. Turn the Hop-Up
adjustment dial backward to decrease hop-up.
Perfect Hop – Airsoft BB travels long distance horizontally.
Inefcient Hop – Airsoft BB travels a downward trajectory path. Turn the Hop-Up
adjustment dial forward to increase hop.
DECREASE
HOP-UP
INCREASE
HOP-UP
KM4 SR7
9