$ 49.95 HK PARTS magazine extension +4 adds 4 additional rounds to the HK45C, 8 round magazine. Each unit can then be fully assembled into a 12 round HK45C magazine. Ideal for competitive shooters, concealed carry, or for everyday use while at the range. Super easy to install simply add the mag extension to your existing mag body and follower. AIR PISTOLS MAGAZINES & SHELLS Air Arms Magazines; ASG Magazines; Beretta Air Weapon Magazines; Brocock Magazines; BSA Air Gun Magazines; Colt Air Weapon Magazines; Crossman Magazines; Daystate Rifle Magazines; FX Air Gun Magazines; Gamo Magazines; Glock Pistol Magazines; Hatsan Air Gun Mags; H & K Magazines. 
TFB Review Tyrant Designs S W Shield 2 Magazine ExtensionThe Firearm Blog
HK Magazine Extension +5 Capacity For - USP 45 & USP 45 Tactical HK USP45, USP45 Tactical magazine extension +5 adds five additional rounds to the full size HK USP45 & USP45 Tactical 12 round magazine. Super easy to install, simply add the mag extension to your existing mag body and follower. An easy 2 min swap. No gunsmithing needed. Made 100% in the USA out of aircraft grade hard coat. MGW offers replacement barrels, slides, magazines, trigger components, recoil springs, pins, and other small parts for this pistol which includes the HK45 Compact. Outfit your Heckler & Koch HK45 with quality OEM and aftermarket parts and components to ensure reliable function with every shot.
HK USP45 .45 ACP 10-Round Magazine with Finger Rest (22) $48.99 HK 416, G36 .22 LR 10-Round Magazine (23) $29.99 HK HK45C, USP Compact .45 ACP 10-Round Extended Magazine (37) $49.99 HK SP5K 9mm 15-Round Magazine (12) $69.99 HK USP9 Expert 9mm with Jet Funnel 18-Round Magazine (12) $79.99 HK USP40 .40 S&W 13-Round Magazine (13) $42.99 HK$296 HKD. Color: Black. Quantity. Sold out. Add to Wishlist. CNC machined aluminum construction. Extends gas and BB capacity. Suitable for Umarex VFC HK45CT magazines. by PRO ARMS. 
HK USP 15 1
$ 109.95 HK45 & HK45 Tactical +3 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 13 round HK45, HK45 Tactical magazine. Ideal for conceled carry, competition shooters that would like the highest magazine capacity possible for the HK45 available on the market. ProMag H&K HK USP Full Size .45 ACP 20-round Steel Magazine This is a ProMag STEEL 20-round extended magazine for HK USP pistols in .45 ACP These heat-treated steel extended magazines feature chrome silicon intern
HK45 & HK45 Tactical +3 magazine extension adds three additional rounds to the 10 round factory HK45, HK45 Tactical magazine. Super easy to install simply add the mag extension to your existing mag body and follower. An easy 2 minute swap. No gunsmithing needed. Made 100% in the USA out of aircraft grade hard coated aluminum with steel hardware. 20 Round Mag Extension - HK45, HK45 Tactical Rated 4.50 out of 5 based on 2 customer ratings ( 2 customer reviews) $ 39.95 Specifications: Magazine extension body & cover 20 round extended magazine spring and retainer Extended follower for use with the magazine extension Compatible: HK45, HK45 Tactical (Will not fit the HK USP .45 Pistol) 
Kriss Vector GLOCK 21 Fully Assembled 25 Round Magazine Extension 45
Product Description 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. And with the HK45C extension HKPARTS reported they would be releasing extensions for the full size as well, this has yet to materialize. Now, I've never understood the need for a 45C +2 extension, as the OEM Elephant Foot mags preform this task flawlessly, albeit not the most elegant in appearance.
HK45 (2) HK45 CT (5) HK45 Compact (5) HK416D Pistol (3) HK416D Rifle (2) HK45 (2) HK45 CT (5) HK45 Compact (5) HK45 Tactical (1) MP5 .22LR Pistol. Magazine Spring USP9/USP40 15/13rd & HK45C/USP45C 8rd . $6.00. Add to cart. Mark 23 12rd Magazine Spring. $6.00. Add to cart. Magazine Spring 10rd for multiple 45cal . $7.00. $ 49.95 HK45 & HK45 Tactical +3 magazine extension adds three additional rounds to the 10 round factory HK45, HK45 Tactical magazine. Super easy to install simply add the mag extension to your existing mag body and follower. An easy 2 minute swap. No gunsmithing needed. 
3 Pack KRISS Vector Gen 2 45 ACP 17 Round Magazine Extension Kit
Choice of flat and extended floorplate magazines; Universal mounting grooves for installing accessories; Ambidextrous magazine release lever;. USP45/HK45 Compact .45 ACP 8rd magazine, extended floorplate: 49: 234268S: 642230244306: USP45/HK45 Compact .45 ACP 10rd magazine (extends below the pistol frame) 49: USP Accessories: USP 45 & Mark 23, Plus +3 Capacity, Magazine Length Extender $34.00 Color Quantity Add to cart The USP 45 & Mark 23 HK +3 magazine extender increases the length of your magazine and the capacity of your magazine by 3 rounds. Functions with magazine wells where extra length is beneficial.
