Each spring fits HK's Newest .45 Caliber Pistol magazine and the HK .45 USPC & HK45C 10 round magazine. We have the best price on these factory magazine springs. The more you order the more you save as we do offer volume discounts on this spring. Shop & compare!Compatible with all:
- HK45 10 Round Magazine
- HK45C & USPC 4510 Round Magazine
- This is not the correct spring for the HK45C & USPC 45 8 Round Magazine