HKP HK Parts US Made HK UMP Magazine - .45 ACP - 25 Round Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine.  Compatible With: HK UMP .45 LWRC SMG .45 (This magazine is the factory OEM magazine for the LWRC SMG 45) Gideon Shadow .45 Tommy Built Tactical .45 Stribog SP45A3 Other applications where they use the HK UMP style 45 magazine Please Note: Will not fit a stock HK USC unless the USC-UMP firearm has been fitted to accept the double stack UMP magazine Specifications: Made in the USA Capacity: 25-Rounds Compliance: Each magazine counts as 3 US-made 922r compliant parts Steel feed lips