PiggyFoam Underbarrel Masterkey | 3D Printed PartsUnderbarrel Masterkey 3D Printed Parts The Underbarrel Masterkey by Shellington Labs is a compact, spring powered shotgun platform designed to mount beneath your primary blaster via standard Picatinny rail systems. This listing covers the 3D printed components only, making it ideal for builders who already have the hardware or want to customize their build from the ground up. Its space efficient underbarrel form factor adds close range versatility

It allows for effortless and secure stowing of your Diana during games

Mag-drop quick-release mechanism for fast

zero-play priming when assembled

and built tough — the Stacked Angled Foregrip is the perfect high end addition to any modern tactical platform

IPSC-Style Performance

Combined with its dedicated CNC 6-round sniper magazine and precision-machined iron sights

frustration-free access when it's time to swap packs

PiggyFoam Ontos Hardware Kit ONLY

helping shooters maintain rapid target acquisition and situational awareness

Dual-sided operation for enhanced accessibility and reduced skill issue incidents

featuring short profile and 6-round capacity

DTB Diana Nylon BCAR