H&K is the commonly used abbreviation for Heckler & Koch, the German firearm manufacturer founded in 1949. It is also shortened to simply HK.

Is HK the same as Heckler & Koch?

Yes. HK, H&K and Heckler & Koch all refer to the same firearm manufacturer. The abbreviations are used interchangeably.

Are the HK CC9 and VP9CC the same pistol?

No. They are separate models. The CC9 is its own micro-compact platform and was the first HK pistol conceived, designed and built in America. The VP9CC is the micro-compact member of the VP9 family.

Are HK SP5, H&K SP5 and SP5 different?

These terms all refer to the same core SP5 model. The SP5K and the longer SP5L are separate variants within the broader SP family.

Where does the MR556 fit in the HK lineup?

The MR556 belongs to the Heckler & Koch MR rifle family, alongside the MR762 and newer A4-generation models. It is chambered in 5.56x45 and uses a short-stroke gas piston system.

Which HK pistol families should I compare first?

Most HK handgun research starts with the VP9, CC9, USP, P30 and HK45 families. Choose based on size and intended use.

Explore the World of Heckler & Koch Firearms

Q: What is HK USA?

HK USA is the American arm of Heckler & Koch, the manufacturer. This website is an independent retailer of HK-branded products and is not HK USA or affiliated with Heckler & Koch.

Explore HK pistols, handguns and iconic platforms — the VP9, CC9, USP, SP5, MR556 and MR762 — then jump straight to the models, parts and accessories we stock.

By Series

VP Series

Unlock the Power of Precision with Heckler & Koch's VP9.

The VP9 is one of the most recognizable modern HK names – a polymer- framed, striker-fired platform that has grown into a family rather than a single configuration. And now you can join this exclusive club by acquiring your own VP9 pistol.

VP9 / VP9A1 F — core full-size
VP9A1 K — compact 4-inch carry variant
VP9 Match — sporting and competition
VP9CC — the family micro-compact

Not the same pistol: the VP9CC and the CC9 are different guns. Both are 9mm micro-compacts, which is why the names get confused.

USP Series

Own a Piece of History with Heckler & Koch' s USP.

Own a Piece of History with Heckler & Koch’ s USP.

Long before the CC9 and the expanded VP9 lineup, the USP became one of the most important pistol names associated with HK. USP stands for Universal Self-loading Pistol.

• Reliability: With its robust design and engineering, the USP is a reliable choice for any situation.

• Customization: The USP offers several customization options to suit your preferences and needs.

• Durability: Despite being a classic design, the USP remains durable and able to withstand the demands of frequent use.

USP — the full-size original
USP Compact — reduced-size configuration
USP Tactical — threaded barrel, match trigger
Calibers — 9mm, .40 S&W and .45 ACP

SP Series

SP5 and SP5K

The SP5 is one of the most recognizable modern HK platforms, carrying the design heritage that made the MP5 famous worldwide. You will see it written as HK SP5, H&K SP5 or simply SP5 — all the same core model.

SP5 — standard length
SP5K-PDW — compact configuration
SP5L — longer barrel variant

Knowing which you have matters for parts — receiver caps, sight drums and magazines differ across the family.

MR Series

MR556 and MR762

The MR family is the civilian side of HK rifle engineering, using a short-stroke gas piston system rather than direct impingement. People often search the MR556 as “HK 556” — same rifle.

MR556 A4 — 16.5″ rifle, 11″ pistol, SBR
MR762 A4 — 16.5″ rifle, 13″ pistol, SBR
Upper Receiver Kits — 11″, 13″, 16″, 16.5″

Parts note: MR556 and MR762 share sleeves, sear springs and forward assists — but barrels, buffers, gas blocks and magazines are caliber-specific.

Quick Reference

Find Your Model

Our catalog gets far easier once it is organised by platform family. This maps model names and common search terms to where each one lives.

Family	Models and Search Terms	Shop
VP Series	HK VP9, VP9A1 K, VP9A1 X, VP9A1 F, VP9 Match, VP9CC, VP9SK	VP Series
CC9	HK CC9, HK micro-compact	CC9
USP Series	HK USP, USP40, USP Compact, USP Tactical	USP Series
P30 Series	HK P30, HK P30L, P30SK	P30 Series
HK45 Series	HK45, HK45C, HK45 Tactical	HK45 Series
Mark 23	HK Mark 23, MK23	Mark 23
SP Series	HK SP5, SP5, SP5K, SP5L	SP5 Series
Rimfire	HK MP5 22LR, HK416 22LR, G36 22LR	Rimfire
MR Series	MR556, HK 556, MR556 A4, MR762A1, MR762 A4	MR Series
Parts and Gear	Handgun parts, rifle parts, holsters, magazines	Accessories

Swipe the table sideways to see all columns.

Shop The Range

Pistols

Rifles

Holsters

FAQ

Common Questions

What does H and K mean?

It is the common abbreviation for Heckler and Koch, the German firearm manufacturer founded in 1949. Also shortened to HK.

What is HK USA?

HK USA is the American arm of the manufacturer. This website is an independent retailer of HK-branded products.

Are the CC9 and VP9CC the same pistol?

No. Separate models. The CC9 is its own micro-compact platform and the first HK pistol designed and built in America. The VP9CC is the micro-compact member of the VP9 family.

Is the VP9SK different from the VP9?

The VP9SK is the subcompact configuration within the VP9 family, with a shorter slide and grip. Same family, dimensionally a different pistol, which matters for holsters and magazines.

Where does the MR556 fit in?

The MR556 belongs to the MR rifle family alongside the MR762 and newer A4-generation models. Chambered in 5.56×45 with a short-stroke gas piston system. Often searched as HK 556.

Gear Up

Independent retailer. This website is an independent retailer of HK-branded products and accessories. All brand and model designations are trademarks of their respective owners and are used descriptively, for product identification.

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