User:Ultimate94ninja

My sandbox for Call of Duty: Mobile

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How to identify SIG MPX generations

The differences are circled in red:

2013 prototype version (left) versus Gen 1 (right).

Gen 1 (left) vs. Gen 2 (right).

Gen 2 (left) vs. current version (right).

The production versions of the MPX SMG/SBR have a default barrel length of 8" (with 6.5" being an optional one), whereas the prototype counterparts were shown with a 6.5" barrel.

Regarding the external differences of the Gen 1 vs. Gen 2, the different bolt carrier & dust cover and the scalloped top rail are definitive characteristics of an MPX Gen 2. This version also has by default an ambidextrous charging handle and a KeyMod handguard, though some MPXes Gen 1 could also be seen with them. For more details about Gen 1 vs. Gen 2, there is an article here.

After Gen 2, the MPX gradually went through some redesigns. The current production version has a narrower plate on the left side of the upper receiver, no "SIG MPX" markings next to it, an M-LOK handguard, two less diagonal vents above it, and a redesigned fencing around the ambidextrous magazine catch. This version is often colloquially referred to as "Gen 3" on the internet, though SIG Sauer doesn't seem call it like that. It is also commonly seen with a Timney trigger, and THRiL magazines have become standard on the MPX since 2022.

Table of Glock models

Characteristics	Full-Sized	Competition	Long Slide	Compact	Subcompact	Slimline
9x19mm Most of these also exist in 9x21mm	Glock 17	Glock 34	Glock 17L	Glock 19	Glock 26	Glock 43
	Glock 18			Glock 19X
				Glock 45
	Glock 47			Glock 46
	Glock 49			Glock 48		Glock 43X
10mm Auto	Glock 20	-	Glock 40	-	Glock 29	-
.45 ACP	Glock 21	Glock 41	-	-	Glock 30	Glock 36
.40 S&W	Glock 22	Glock 35	Glock 24	Glock 23	Glock 27	-
.380 ACP	-	-	-	Glock 25	Glock 28	Glock 42
.357 SIG	Glock 31	-	-	Glock 32	Glock 33	-
.45 GAP	Glock 37	-	-	Glock 38	Glock 39	-
.22 LR	-	-	-	Glock 44	-	-