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Quick Look

The Heckler & Koch UMP .45 was introduced in 1999 as a cost-effective successor to the MP5. It emphasizes simplicity and durability with a polymer frame and blowback operation. The UMP .45 remains popular for law enforcement and personal defense applications.

Why It's a Top Choice

Robust blowback design for reliability
Lightweight polymer construction
Chambered in powerful .45 ACP
Easy to maintain and operate
Widely adopted by law enforcement

Key Variants

UMP 45

Standard .45 ACP SMG favored for its balance of stopping power and controllability in close quarters.

UMP 40

Chambered in .40 S&W, offering reduced recoil and magazine capacity for various duty needs.

UMP 9

9mm version preferred for higher capacity and manageable recoil.

Competitor Comparison Table

Feature	UMP 45	MP5	SIG MPX
MSRP	$1,150 - $1,300	$1,500 - $1,800	$1,800 - $2,200
Capacity/Size	25 rounds (.45 ACP)	30 rounds (9mm)	30 rounds (9mm)
Weight	6.6 lbs (empty)	6.6 lbs (empty)	6.9 lbs (empty)
Optics-Ready	Yes, Picatinny rail	Yes, sights only (adapter required)	Yes, integrated rails
Trigger Type	Double-action / Single-action	Double-action / Single-action	Striker-fired
Notable Pro	Powerful .45 ACP caliber	Extensive aftermarket support	Modern modular design
Notable Con	Heavier recoil than 9mm variants	Higher cost and maintenance	More complex maintenance

Best Use Cases

Personal and home defense
Law enforcement duty weapon
Close quarters battle
Range training and practice
Firearms collection

FAQs

Can I mount optics on the UMP 45?

Yes, the UMP 45 features a Picatinny rail for mounting red dots, scopes, or other optics.

What is the magazine capacity of the UMP 45?

The standard magazine holds 25 rounds of .45 ACP ammunition.

How does the UMP 45 compare to the MP5?

The UMP 45 offers more stopping power with .45 ACP but less capacity and increased recoil compared to the 9mm MP5.

UMP 45 for Sale