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- Caliber:
- .450 Bushmaster
- Barrel Length:
- 16 in
- Barrel Profile:
- Heavy
- Gas System Length:
- Carbine Length
- Barrel Twist Rate:
- 1-24
- Finish:
- Parkerized
- Handguard Length:
- 15 in
- Gun Rail:
- M-LOK
- Gun Make:
- AR Platform
- Gun Model:
- AR-15
- Barrel Material:
- 416R Stainless Steel
Code: 5NY-URC-14PK-543NSCH450CHB16124P875
MPN: 543N-UASCH450CHB16124P875-15M3
Product Info for Bear Creek Arsenal AR-15 .450 Bushmaster 16in Right Side Charging Upper Receiver
This BCA AR-15 complete 9MM pistol upper has a 10.5 inch M4 barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes a 9.5 inch MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and Gen 2 (patent pending) right-side charging handle and will fit on a mil-spec AR-9 lower.Shop more 9mm!![]()
Package Content
- Bear Creek Arsenal AR-9 9mm 10,5in Billet Upper Receiver with Right Side Charging Handle
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Bear Creek Arsenal AR-15 .450 Bushmaster 16in Right Side Charging Upper Receiver Unavailable & Discontinued Models
List of Unorderable Models
- Bear Creek Arsenal AR-15 .450 Bushmaster Right Side Charging Upper Receiver, 16in Parkerized Heavy Barrel, 1-24 Twist, Carbine Length, 15in MLOK, 543NSCH450CHB16124P875 , MPN: 543N-UASCH450CHB16124P875-15M3 , Code: 5NY-URC-14PK-543NSCH450CHB16124P875
- Bear Creek Arsenal AR-15 .450 Bushmaster Right Side Charging Upper Receiver, 16in 416R SS Heavy Barrel, 1-24 Twist, Carbine Length, 15in MLOK, 9761NSCH450CHB16124SS875 , MPN: 9761NUASCH450CHB16124SS87515M3 , Code: 5NY-URC-14PK-9761NSCH450CHB16124SS875




































































































































































































