Description
The HK 45 COMPACT 8 Round is a pistol chambered in 45 ACP with a 3.90-inch barrel and a 8+1 capacity. This configuration is listed by HK as: HK45 Compact (V1) DA/SA, safety/decocking lever on left, two 8rd magazines.

HK 45 COMPACT 8 Round Overview
The HK45 is HK’s .45 ACP polymer pistol, designed for the U.S. military trials with improved ergonomics, interchangeable backstraps, and a recoil reduction system that softens the .45’s push.
Design and Features
HK builds its barrels by cold hammer forging, which produces a durable, accurate bore with a long service life. It ships with magazines holding up to 8 rounds.

Handling and Carry
The HK45 Compact gives you .45 ACP power in a size that still carries well, with HK’s reputation for reliability.
Trigger and Controls
This V1 variant uses a DA/SA trigger with a safety/decocking lever, letting you carry hammer down and fire the first shot double action.
Sights and Optics
The factory sights give a clear, quick sight picture, and the optic-ready slide lets you add a red dot whenever you are ready.
The 45 ACP Cartridge
The 45 ACP offers a good balance of power, accuracy, and recoil for its intended use.
Setup and Accessories
A good holster is the most important accessory for any carry pistol. Choose one that covers the trigger guard completely and holds the gun securely, then add a sturdy gun belt, spare magazines, and a weapon light if the frame has a rail. Practice drawing and reloading with an unloaded gun until it feels natural.
Ownership Tips
Read the owner manual fully before your first range trip, and keep the manual, box, and receipt with your records for warranty service and resale. Unload the pistol and confirm it is empty before cleaning. Field-strip it according to the owner manual, scrub the bore with a brush and patches, and wipe carbon from the breech face and slide rails. Apply a light coat of quality gun oil to the contact points, and wipe the exterior with a lightly oiled cloth before storage.
State Laws
Magazine capacity limits, feature restrictions, and transfer rules vary by state and locality. Check your local laws before ordering, and ask your receiving dealer if you are unsure whether this configuration is legal where you live.
Ordering and Transfer
When you order a firearm from MAG5 Firearms, we ship it to the licensed dealer you choose. Your dealer completes the ATF Form 4473 and the background check, and may charge a transfer fee. Local buyers can complete the transfer at our shop. Bring a valid ID, and check your state waiting period before you plan a hunt or a range trip.
Safe Storage
Store the firearm unloaded in a locked safe or case, with ammunition kept separately. A cable lock or trigger lock is a good backup, especially in a home with children or visitors. Keep the original box and paperwork, and record the serial number in a safe place in case the gun is ever lost or stolen.
Your First Range Trip
Start at 5 to 7 yards with practice ammo and work on a steady grip and a smooth trigger press. Load only a few rounds at first, and check that the gun feeds and ejects reliably. Wear eye and ear protection, keep your finger off the trigger until you are on target, and clean the gun when you get home.
Specifications
- Model: HK HK45 COMPACT
- Configuration: HK45 Compact (V1) DA/SA, safety/decocking lever on left, two 8rd magazines
- HK ID Number: 81001111
- Caliber: .45 ACP
- Overall Length: 7.24 in.
- Height: 5.51 in.
- Width: 1.54 in.
- Barrel Length: 3.90 in.
- Sight Radius: 6.02 in.
- UPC: 642230269323
Before You Buy
Federal law requires handgun purchases to go through a licensed dealer, and buyers must be 21 or older to buy a handgun from a dealer. We ship to the FFL dealer of your choice, and your dealer handles the background check and transfer.
Who It Is For
The HK 45 COMPACT 8 Round is a great fit for concealed carriers, home defenders, and range shooters who want a dependable pistol from Heckler & Koch.
Buy the HK 45 COMPACT 8 Round at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the HK 45 COMPACT 8 Round online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit Heckler & Koch.






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