Lead delivery systems

.450 Bushmaster suppressors are currently available from Bowers Group LLC. 
Contact  http://www.bowersgroup.com

SCG-10
Free Float Tube Hand Guard - $65

MIG3-02 Shown

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BM21
.11/16"-24 Knurled Thread Protector $20

Available in 7.25" and 12.5" lengths.

Compatible with

.458, 450, and 375 Uppers.

(Sheridan Engineering - Patent Pending)

BM20
.450 Bushmaster Slotted Case Gauge $45

Includes a 1:24 twist 18" lightweight barrel, complete bolt carrier group, charging handle, mid-length GI hand guards, and Tromix muzzle brake. This upper on a standard M4 style lower will result in a complete rifle weight of 6.1 pounds.

BM18-LW
Completely assembled .450 Bushmaster upper $729

18" chromoly, 1:24 twist, threaded 11/16-24 Barrel weight: 1.69 lbs.

BM02-24LW
.450 Bushmaster Lightweight Barrel Only $250


  • Includes a ready-to-install 18 inch chromoly barrel with an 11/16-24 threaded muzzle.
  • Bolt head includes the gas rings, extractor and ejector. Does not include bolt carrier, firing pin, etc.
  • Barrel profile is .785 under the hand guards, .750 at the gas block, and .730” to the muzzle.
  • Mid-length gas system.
  • Barrel weight: 1.69 lbs.

BM01-24LW
.450 Bushmaster 1:24 twist 18" barrel & bolt combo $299

BM07
.450 Bushmaster Muzzle Brake $60

11/16-24 thread

BM04
.450 Bushmaster Gas Block .750" $30

Includes extractor, ejector, and gas rings.

BM03
.450 Bushmaster Bolt Only $110

Ejection port enlarged
Includes forward assist assembly and ejection port cover

BM17
.450 Bushmaster upper receiver $135

No dealer discounts on .450 Bushmaster parts.
No International Shipments.

To place an order for .450 Bushmaster parts please contact Tromix at: (918) 543-3456

450 Bushmaster Parts

Upgrade your BM18-LW with the MI-G3 M-Lok hand guard

MIG3-01 15.0" Add $175
MIG3-02 12.6" Add $165
MIG3-03 10.5" Add $145
MIG3-04 9.25" Add $135
MIG3-05 7.25" Add $125