The USP .45 Compact was undoubtedly the best pistol I've carried concealed. It's size, weight and design all contribute to be controllable while concealable, and 9 rounds of .45ACP was a. The HK45 is like its USP precursor in that it has a modular trigger/safety system, and there are plans to eventually have 10 different variations of fire modes and control functions. The double-action pull on my sample was a smooth, non-stacking 12 pounds. The single-action pull measured five pounds but felt lighter. 
Gun Review HK USP Tactical 45 The Truth About Guns
Look and Feel of the HK USP 45 Because of its original design purpose, the pistol is big and bulky. For a composite pistol having a polymer frame and metal slide, the pistol is still quite heavy. A fully loaded HK USP 45 pistol weighs in at 2lbs 9 ounces when loaded with 13 230 grain 45 ACP rounds. The HK45 is fully ambidextrous. The HK45 is reportedly one of the easier .45 pistols to shoot, and the company claims its patented recoil reduction system will "increase accuracy and service.
The HK 45 is the big-bore evolution of the military-grade HK USP pistol. It's 10+1 round medium-capacity configuration bridges the gap between lower-capacity single-stack 45 caliber pistols and higher capacity 45s that are just plain fat and unwieldy. The HK45 was supposed to be a more refined and updated version of the USP. It has superior ergonomics (i.e. thinner grip, backstrap replacements) and a 1913. 
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At 7.25 inches long and 4.5 inches high, the HK45 is a big pistol, but with the medium backstrap installed I found that it pointed perfectly for me, thanks in part to the grip's finger grooves and texturing. The polymer frame has a large trigger guard, a nod to the fact that many users may be wearing gloves, and an accessory rail. The USP comes in a variety of sizes and calibers, with 9mm, .40 and .45 all represented. The USP Tactical version features a threaded barrel and a very high front sight so it can be used with a suppressor. Takedown of the USP Tactical is slightly more complicated than your standard Glock/XDM/M&P gun, but easier than a 1911.
The slide of the USP Compact is more of a square slide, while the 45C is more streamlined. This does take off some weight but not to a meaningful degree. The slide of the USP Compact has deep. YouTube wants to kill this channel! Please consider supporting me through my Patreon - https://www.patreon.com/firearmsofamerica HK USP 45 Review (Much Reque. 
Heckler Koch USP Review Universal Self loading Pistol
The HK USP 45 is not an inexpensive pistol, and this fact alone keeps many people who want one from purchasing it. A standard USP 45 can easily cost nearly or over a grand, when comparable duty pistols like the Glock or the Smith & Wesson M&P or the Walther P99 can be owned for around half of that total cost. At 7.91-inches in overall length with a 5.51-inch height and a 1.54-inch width, HK 45 Compact Tactical is large for a single stack polymer-framed handgun. At 29.12-ounces, unloaded, this gun is.
The @HecklerKochTV USP 45 is one awesome pistol. I've been looking for one locally for quite some time and now I found it. The USP 45 is a big pistol that shoots like a dream, eats anything. Where the HK45c improves upon the USP Compact is the fact that it's fully ambidextrous…well, almost. The slide release is now ambidextrous and it's pretty easy to actuate even though it has a smaller surface area than the USP's. 
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By The Numbers - HK USP 45 Accuracy These guns are fairly accurate if the shooter can work around the mediocre trigger. Reliability The USP may very well be the most reliable semi-automatic handgun ever made. Customization Sights, threaded barrels, magwells, and some trigger upgrades are available. The lack of a Picatinny rail hurts this score. The HK USP Expert 45 also utilizes a wide-body polymer frame and can be carried cocked and locked, ready to shoot single action. But the USP Expert can also be decocked and carried with the hammer down for first shot double action followed by a transition to single-action only fire.
