These models are based on detailed manufacturers drawings for most parts with minimum thickening to meet SW requirements. The guns are aircraft type which differed from HB guns mainly in a shorter barrel surrounded by a perforated jacket. Included are left and right ammo feed guns with rear grips and triggers for twin gun setups as used on some PT boat deck guns. The guns feature RSG (retracting slide group) type cocking mechanisms. Can style flash suppressors are also included. The barrel / jacket mounting pin is sized so that the brass ones from Master Model can be substituted. The sprue cage is designed to hold the parts with no direct attachment and for easy part removal.
The guns feed ammo from the side the RSG is on.
Mounting holes front and rear are smaller than scale to meet SW requirements, open up carefully if needed. See this page for correct hole size: http://www.pt103.com/PT_Boat_Components_Browning_50_Cal_M2_Aircraft.html
The first step is to clean all parts thoroughly. Handle very carefully as the plastic is brittle. Please see the guide and links here: http://www.pt103.com/3D_Printed_PT_Boat_Parts.html
. For best painting results be sure to follow cleaning with a UV cure from a lamp with the correct output, or the sun.
Due to the many nooks and crannies on this model, an ultrasonic cleaning while still sprued with a cleaning solution such as Simple Green is highly recommended.
Remove the barrels first by clipping off the U shaped retainer at the mounting pin end. The retainer is attached to the sprue at the outside only for ease of removal. Cut off the excess barrel sprue to access the gun retainers.
Remove the flash suppressors by cutting off their retainer and sliding them off the sprue rods.
While the guns are still protected by the sprue cage, check the fit of the barrels to the guns. Also check the fit of the flash suppressors to the barrels if they are to be used.
Carefully cut off the center gun retainer / cocking lever protector near the base sprue on both sides.
The front gun retainers are only attached at the outside of the sprue cage, like the barrel retainers. The back gun retainer holds both guns and is held by the vertical outside sprues.
Cut both uprights of the back retainer near the base sprue and carefully remove. Work on freeing one gun at a time, cut the front retainers. Lift the guns from the cage being careful of the top cover knobs underneath which are very delicate