Next Level Armament NLX450 Bushmaster Complete Upper (18 in mid-length gas)
18-inch .450 Bushmaster AR-15 complete upper with a Tromix barrel, Tromix bolt, NLX-11 brake, and heavier buffer spring.
- Price
- $1,050
- Brand
- Next Level Armament
- Category
- Uppers
Features
- •Tromix 18 in mid-length gas, 1:24
- •NLX556 DLC carrier with Tromix .450 BM bolt
- •15 in NLA M-LOK handguard
- •NLX-11 brake, 11/16x24
- •Extra power buffer spring
Where to Buy
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NLX450 Bushmaster Complete Upper - 18 mid-gas
Next Level Armament AR15 450 Bushmaster 18in Forged Complete Upper Receiver 16in Carbine Gas 1-24 Twist Black
Price History
90-day low $859.50More AR-15 guides & articles
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Overview
The NLX450 Bushmaster Complete Upper converts an AR-15 lower to .450 Bushmaster for straight-wall deer and hog seasons. Next Level Armament builds it on its forged NLX556 upper, whose ports it opens for big-bore cases, with a Tromix 18-inch mid-length gas barrel in a 1:24 twist. The bolt carrier is Next Level's DLC NLX556 carrier running a Tromix .450 Bushmaster bolt.
It also includes the NLX556 ambidextrous charging handle, an NLA billet low-profile gas block, a 15-inch NLA M-LOK handguard, Next Level's NLX-11 brake in the standard 11/16x24 thread, and an extra power buffer spring to manage the heavier cartridge. Use .450 Bushmaster magazines in the lower.
Key Features
- Forged NLX556 upper receiver
- Tromix 18 in mid-length gas barrel, 1:24 twist
- NLX556 DLC carrier with Tromix .450 BM bolt
- NLX556 ambidextrous charging handle
- 15 in NLA M-LOK handguard
- NLX-11 .450 Bushmaster brake
- Extra power buffer spring
Pros
- +Tromix barrel and bolt
- +Brake and buffer spring for .450 BM recoil already included
Cons
- −Over $1,000 for an upper
- −Requires .450 Bushmaster magazines
Detailed Specifications
- sku
- NLX514
- caliber
- .450 Bushmaster
- barrel
- Tromix 18 in, mid-length gas, 1:24 twist
- receiver
- NLX556 forged upper
- bcg
- NLX556 DLC carrier, Tromix .450 BM bolt
- handguard
- NLA M-LOK, 15 in
- muzzle
- NLX-11 brake, 11/16x24
- buffer
- Extra power buffer spring included
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Build Your Custom Configuration
Add the Next Level Armament NLX450 Bushmaster Complete Upper (18 in mid-length gas) to your build and see how it enhances your platform.