Built for duty, our HK 45 +3 is the big brother to our HK VP9/P30 "Border Special."
Designed at the behest of law enforcement, the Border Special line provides maximum security, strength, and durability on the HK magazine -- and works with the stock spring. Use our HKVP9/40 spring as a replacement when your springs start to wear out.
Mark III version: Built specifically for the HK 45, and no longer works on the HK USP 45 compact. We closed the small (but unsightly) gap between the top of the magazine and the bottom of the frame (needed for the HK USP 45 compact), while retaining the extra length added in the 2.0 model. That extra length made loading the full +3 easier, but still kept the overall size reasonable for a duty gun.
Together, the upgrades make this part flashier, and easier to use.
Includes anti-vibration screws
Spring-steel locking plate Cerakoted black for corrosion resistance
Overall length assembled is approximately 150mm (145mm measured down the back) -- slightly too long for use in USPSA "Limited" competition.
*due to state department restrictions, we cannot ship this part internationally.
** Importing this part into California or other low-cap states may be a violation of law -- check your local laws before attempting to order.
9 Reviews Hide Reviews Show Reviews
Simple insatall on stock HK 45 magazine. No spring change needed. 3 rounds fit and all cycle no problem except the spring is more relaxed and the slide does not stay open when the last round is ejected. Other than that, works fine.
Very robust, nicely designed and machined. Installed very quick and easy. Adds the right amount of weight to aid the magazine in quicker ejection. Note: make sure you place your follower inside the extension and then slide it on the magazine.
Well made, great fit, feeds flawlessly.
I love that I can fit an extra 3 bullets in my HK45. The extender is really well built. My only complaint is that the slide does not stay locked back when I go through all the rounds.
Though they are supposed to hold 10 rounds my HK45 Tactical magazines reliably hold, and feed 11 rounds. I wasn't expecting to fit 14 rounds after installing this product, but was disappointed that I was only able to load 12 rounds. That being said 12 IS better than 11, and this product was considerably less expensive than some competitors, so I'm not completely put out. RESPONSE -- Sounds like you might have been sent one of the older models. Give us a call to discuss! - RT
Fits tight, works great, and looks good doing it. What's not to like!??
The mag extension does not work as advertised. I could only get 1 extra round in the mag at first. Had to get on the internet where I found you have to modify the follower to make it work. After I made the modifications, I could get only 2 extra rounds into the mag. I was finally able to get 3 extra rounds in the mag, only after asking around. To get the 3rd round in, you have to bang on the mag because the spring gets hung up. Haven’t shot with it yet. Have to see how it actually works. It seems to have been manufactured well but has a minor design flaw where the spring and/or the follower are getting hung up a a little lip left inside the +3 mag extension. If the manufacturer gets the little ledge shaved down, I imagine the extension would work just fine.
Not as advertised....first attempt could only get 1 extra round in mag. Had to get on YouTube where I found out you have to modify the follower to make make it work. Second try after modification it worked but could only get 2 rounds safely in the mag. A 3 rd round did not fit with normal reloading pressure. If you somehow got a 3rd extra round in the mag, the mag will not fit in the pistol with a round in the chamber .
These are high quality extensions! looks sleek and functions flawlessly, will buy more for all my hk45 magazines