Platypus Compatibility Guide
Magazines, Extensions & Holsters
Last Updated: 10/07/2025
Magazine Compatibility
G17 9mm Magazines
10 Rounds:
Glock Factory Gen 4
Glock Factory Gen 5
ETS Group
KCI
ProMag
MagPul
17 Rounds:
Glock Factory Gen 4
Glock Factory Gen 5
Amend2
ETS Group
ETS Group Omega
XTech Tactical
SGM Tactical SHK mag
ProMag
KCI
Mec-Gar 18rnd
Doesn't work with out-of-the-box base plate (Glock OEM or similar aftermarket base plate required).
Extended:
ETS Group 27rnds
Glock 24rnds
Glock 32rnds
SGM 30rnds
MBX 140mm 22rnds
G21 .45 Magazines
Extended:
KCI 26rnd
Global Ordinance 26rnd
SGM 26rnd
ProMag 22rnd
Magazine Extensions (G17 9mm)
Tested & Customer Suggested:
(Green check indicates tested and confirmed to work. Grey question mark indicates untested, but customers have reported compatibility. Red X indicates we found it incompatible.)
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TF - Taylor Freelance
help
ARC Division
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Shield Arms - +4-5
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Timber Creek
No spring provided, worked with a factory new Gen 5 Glock mag spring
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TTI - Terran Tactical
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Tyrant CNC
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Warne
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Henning
help
JagerWerks
help
SLR Rifleworks
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Arredondo
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MBX
help
Cross Armory
help
ZEV
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Strike Industries - Polymer version only
Aluminum version has too much material at back of mag
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Ghost INC - +6MOAB & lowViz MOAB
Extension interferes with mag funnel
Compatible Holsters
Stock Options:
Big Dog Steel
Black Scorpion Outdoor Gear
Crossbreed
Red Hill Tactical
US Duty Gear Level 2 and Level 3 retention holsters
Tier One Concealed Holster (light dependent)
Craft Holsters (leather)
The Holster Dude
QVO
Priority 1 Holsters
Custom Options:
GT Holsters
River Arms LLC
1911/2011 Compatible Parts
Sear
Hammer & Hammer Strut
Disconnect
Sear & Hammer Pins
All Springs
Guide Rod
Barrel Bushing
Needs fitting as barrel is proprietary
Extractor
Ejector
Firing Pin
Firing Pin Stop
Sights
Novak compatible