Pistol Caliber
24 Item(s)
Grid List
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K10M-10; 10 round 10mm AR-15 Magazine
k10m-10 -
K10UR-FT: 16" 9mm Flat-top Upper Receiver
K10ur-FTK10UR-FT: 16" 9mm Flat-top Upper Receiver
Complete upper receiver assembly chambered in the wildly popular and affordable 10mm pistol cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 30 round polymer magazine. Front sight and handguard options available. Learn More$721.50 -
K24P-10: 10mm 11.5" Barreled AR-15 Pistol
K24(-10 -
K24P-10-OR: 10mm Optics Ready 11.5" Barreled AR-15 Pistol
K24P-10-orK24P-10-OR: 10mm Optics Ready 11.5" Barreled AR-15 Pistol
9mm Optics Ready AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,038.70 -
K24P-40: 40 S&W 11.5" Barreled AR-15 Pistol
K24P-40 -
K24P-40-OR: 40 S&W Optics Ready 11.5" Barreled AR-15 Pistol
K24P-40-ORK24P-40-OR: 40 S&W Optics Ready 11.5" Barreled AR-15 Pistol
9mm Optics Ready AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,038.70 -
K24P-45: 45ACP 11.5" Barreled AR-15 Pistol
K24P-45K24P-45: 45ACP 11.5" Barreled AR-15 Pistol
Our newest AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,006.20 -
K24P-45-OR: 45 ACP Optics Ready 11.5" Barreled AR-15 Pistol
K24P-45-ORK24P-45-OR: 45 ACP Optics Ready 11.5" Barreled AR-15 Pistol
9mm Optics Ready AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,038.70 -
K24P-9: 9mm 11.5" Barreled AR-15 Pistol
K24P-9K24P-9: 9mm 11.5" Barreled AR-15 Pistol
Our newest AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,006.20 -
K24P-9-OR: 9mm Optics Ready 11.5" Barreled AR-15 Pistol
K24P-9-ORK24P-9-OR: 9mm Optics Ready 11.5" Barreled AR-15 Pistol
9mm Optics Ready AR-15 pistol model featuring a 11.5" barrel, no buttstock and a padded receiver extension tube. Learn More$1,038.70 -
K40 - Pistol Cal 40 S&W
K40K40 - Pistol Cal 40 S&W
Pistol cal 40 S&W in an AR-15 platform with a 16in. barrel. Olympic Arms pistol cal models use standard AR-15 lower receivers that accept our polymer pistol cal magazines. Learn More$1,006.20 -
K40-GL - Pistol Cal 40 S&W, Glock Lower
K40-GLK40-GL - Pistol Cal 40 S&W, Glock Lower
Pistol cal 40 S&W in an AR-15 platform with a purpose-made lower receiver that uses Glock? magazines. Learn More$1,157.00 -
K40UR: 16in. 40 S&W Upper Receiver Conversion Unit
K40-URK40UR: 16in. 40 S&W Upper Receiver Conversion Unit
Complete upper receiver assembly manufactured for 40 S&W and includes one 20 round polymer magazine. Learn More$721.50 -
K40M; AR-15 Magazine, 20 Round, .40 S&W
K40M -
K40UR-FT: 16" 40 S&W Flat-top Upper Receiver
K40UR-FTK40UR-FT: 16" 40 S&W Flat-top Upper Receiver
Complete upper receiver assembly chambered in the wildly popular and affordable 40 S&W cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 30 round polymer magazine. Front sight and handguard options available. Learn More$721.50 -
K45 - Pistol Cal 45 ACP
K45K45 - Pistol Cal 45 ACP
Pistol cal 45 ACP in an AR-15 platform with a 16in. barrel. Olympic Arms pistol cal models use standard AR-15 lower receivers that accept our polymer pistol cal magazines. Learn More$1,006.20 -
K45UR: 45 ACP Upper Receiver, 16"
K45-URK45UR: 45 ACP Upper Receiver, 16"
Complete upper receiver assembly manufactured for 45 ACP and includes one 18 round polymer magazine. Standard with A2 upper receiver, but available with an optional picatinny flat-top upper.
Upper is 100% complete with bolt carrier assembly and charging handle. Ready to drop on any standard AR15 lower receiver. Simply attach the upper and swap out to the 45 ACP magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 15 seconds!
This caliber conversion does not require the changing of hammer, trigger, buffers or buffer spring. No need to add in a magazine well adapter or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.
Other pistol calibers available: 9mm, 10mm and 40 S&W.
Learn More$721.50 As low as: $701.50 -
K45M-10: AR-15 Magazine, 10 Round, .45 ACP
K45M-10K45M-10: AR-15 Magazine, 10 Round, .45 ACP
AR-15 Magazine, 10 Round, .45 ACP10 round, 45 ACP Magazine for AR-15 lower receivers
Learn MoreThis is the new generation pistol caliber magazine for Olympic Arms carbines and conversion uppers chambered in 45 ACP. While the physical size of these magazines are identical to the standard capacity magazines, they are permanently blocked internally to prevent the magazine from taking more than 10 rounds.
Are these mags tough? You bet. Made in the USA (Washington State) using the latest technology of fiberglass embedded polymer, you can run these mags over with your car, and they keep on functioning!
10 round, 45 ACP Magazine for AR-15 lower receivers
NOTES:- The feed ramp in the Pistol Caliber Upper Receivers has changed slightly over the years and the magazine may not work in all Upper Receivers without minor modification. If you purchase a magazine and it doesn’t feed properly send in your upper receiver to the factory to perform this modification free of charge."
- THESE MAGAZINES DO NOT WORK WITH AFTERMARKET 45 ACP CONVERSIONS.
$45.44 -
K45UR-FT: 45 ACP Flat-top Upper Receiver, 16"
K45UR-FTK45UR-FT: 45 ACP Flat-top Upper Receiver, 16"
Complete upper receiver assembly chambered in 45 ACP and includes one 18 round polymer magazine. Standard with Picatinny Falt-top upper receiver.
Upper is 100% complete with bolt carrier assembly and charging handle. Ready to drop on any standard AR15 lower receiver. Simply attach the upper and swap out to the 45 ACP magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 15 seconds!
This caliber conversion does not require the changing of hammer, trigger, buffers or buffer spring. No need to add in a magazine well adapter or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.
Other pistol calibers available: 9mm, 10mm and 40 S&W.
Don't forget Extra magazines and/or spare pistol-cal parts.
Learn More$721.50 As low as: $701.50 -
K9 - Pistol Cal 9mm
K9K9 - Pistol Cal 9mm
Pistol cal 9mm in an AR-15 platform with a 16" barrel. Olympic Arms pistol cal models use standard AR-15 lower receivers that accept our polymer magazines. Learn More$1,006.20 -
K9-GL - Pistol Cal 9mm, Glock Lower
K9-GLK9-GL - Pistol Cal 9mm, Glock Lower
Pistol cal 9mm in an AR-15 platform with a purpose-made lower receiver that uses Glock magazines. Learn More$1,157.00 -
K9M-10: AR-15 Magazine, 10 Round, 9mm
K9M-10 -
K9UR: 16" 9mm A2 Upper Receiver
K9URK9UR: 16" 9mm A2 Upper Receiver
Complete upper receiver assembly chambered in the wildly popular and affordable 9mm pistol cartridge. Standard forged 7076T6 aluminum A2 upper with one high capacity 30 round polymer magazine. Front sight and handguard options available.
Don't forget extra magazine and spare parts!
Learn More$721.50 As low as: $701.50 -
K9UR-FT: 16" 9mm Flat-top Upper Receiver
K9UR-FTK9UR-FT: 16" 9mm Flat-top Upper Receiver
Complete upper receiver assembly chambered in the wildly popular and affordable 9mm pistol cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 30 round polymer magazine. Front sight and handguard options available. Learn More$721.50 As low as: $701.50
24 Item(s)
Grid List