The Goliath +20 magazine extension significantly increases Glock 9mm magazine capacity, turning a standard 33-round 'Big Stick' into a 51-round unit. Available in multiple colors, it requires a specific Glock factory 33-round magazine for compatibility. The installation process involves careful disassembly and reassembly using provided extended springs and followers, secured by Allen screws.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
