Lead delivery systems

Barrel and Bolt Combo $324

(Available in 416 Stainless only) 


Barrel Only $275
For Black Finish add $25

  • Rifle barrel only $250
  • Barrel and Bolt combo $299
  • Matte Stainless Steel add $25

Available diameters: 
5/8", 11/16", 3/4", 49/64"

  • Rifle barrel only $250
  • Barrel and Bolt combo $299
  • Matte Stainless Steel add $25

Magazine floor plates are blued steel, engraved ".458 SOCOM 10 rounds".  (Does not include the magazine body or spring.)

SCG-12
Center-Feed .458 SOCOM magazine followers for 30 round GI magazines $15
​Will not work in new style GI mags equipped with Tan followers, unless the spring is replaced with an old style. 

SCM19B
Complete assembled 10.5" .458 SOCOM upper shown with optional MIG3-9 hand guard and muzzle brake. $864

Adds 1.3" to barrel length.
Available in black or stainless finish.
Black $60
Stainless $65

MIG3-12 Shown

SCG-13
458 SOCOM 10 round base plates for

30 round GI magazines $5

SCM02P10-10  

.458 SOCOM 10.5in - 1:10 Fast Twist - Pistol length gas system

Manufactured by Tromix under licensing agreement with Sheridan Engineering (Pat. Pend)

.458 SOCOM 14" barrel with .865" diameter muzzle brake pinned/welded for 16.2" overall length.  Carbine gas system, .875" gas block journal, 1:14 twist, black finish.  Limited Availability.

SCG-11A
Center-Feed .458 SOCOM follower for Lancer 20rd and 30rd 5.56 magazines. $15

SCM02R14-16

.458 caliber, 11.4" length, 1.72" OD, all stainless steel, user serviceable. Includes 5/8-24 thread adapter.

Rifle Barrel only - $399
Barrel and Bolt Combo - $449

SCM23 

Redding .458 SOCOM 2-Die set $95

These 6061-T6 black anodized aluminum magazine followers fit 30 round GI magazines, allowing for center feeding of .458 SOCOM cartridges and limiting the magazine to a maximum of 10 rounds. 

Available in 4, 7, and 11 round capacity.

Fully functional with 10, 20, and 30 rounds of 5.56/.223 ammunition.  No shipments of 7/20 or 11/30 round magazines to restricted locations. These Lancer 5.56 magazines have been remachined by Tromix to allow even the most flat/blunt nosed .458 bullets to feed properly. These magazines do not come with Tromix center feed follower or base plates.

Upgrade your SCM18 with the MI-G3 M-Lok hand guard

Barrel Only (no bolt)  $275

SCM14
Pistol Length Gas Tube $15

SCM13
Carbine Length Gas Tube $15 

SCM12
Charging Handle $25

SCM08c Carbon Steel $30
SCM08s Stainless Steel $35

SCM08
.458 SOCOM Flash Hider 5/8-24 Thread

SCM07SS
Matte stainless steel muzzle brake 5/8-24 Thread $65

SCM07
.458 SOCOM Muzzle Brake 5/8-24 Thread $60

SCM06
.458 SOCOM Ejector $5

SCM05
.458 SOCOM Extractor $30

Barrel profile is .900" under the hand guards, .875" at the gas block, and .800" at the muzzle. Threaded 5/8-24 with a 1:14 twist. Barrel weight: 1.03 lbs.

SCM02P8
.458 SOCOM 8.0in. - Pistol length gas system.

  • Rifle barrel only $250
  • Barrel and Bolt combo $299
  • Matte Stainless Steel add $25

Barrel profile is .900" under the hand guards, .875" at the gas block, and .800" at the muzzle. Threaded 5/8-24 with a 1:14 twist. Barrel weight: 1.52 lbs.

Install Muzzle Break or Radial Comp instead of Flash Hider - add $30

Also available with a 12” barrel at no additional charge. 8" barrel is not available due to GI hand guard length.

Includes 10.5" barrel, flash hider, picatinny rail gas block, bolt/carrier and charging handle. Ready to fire on your Pistol/SBR lower.

SCM19
Complete assembled 10.5" .458 SOCOM upper $729

SCM02
.458 SOCOM 16.25in. Barrel Only $250
Barrel weight: 1.92 lbs.


Matte Stainless Steel - add $25

SCM17
.458 SOCOM Upper Receiver $135

Includes complete ready-to-install 16.25in. barrel.
Barrel profile is .900" under the hand guards, .875" at the gas block, and .800" at the muzzle. Threaded 5/8-24 with a 1:14 twist. Machined for use with hand guards that don't use a hand guard cap. Barrel weight: 1.92 lbs.

No dealer discounts on .458 SOCOM parts.
No International Shipments
.

458 Socom Parts

  • Rifle barrel only $250
  • Barrel and Bolt combo $299
  • Matte Stainless Steel add $25

SCM42
Thread Protector, Knurled Steel 5/8-24tpi   $20

SCG-11
​.458/.375 SOCOM Magazine - $20

Upgrade your SCM18 with a round aluminum free float tube.  Hand guard tubes are only available in 12.5" (shown) and 7.25" lengths.  Add $50

SCM24
Tromix Radial Compensator

Available in 7.25" and 12.5" lengths.

Compatible with

.458, 450, and 375 Uppers.

SCG-11B
Floor plates for Lancer magazines. $12

(specify 7rd or 10rd)

Also available in:
- 5/8-32 Thread (Rock River)
- 11/16-24 Thread (Wilson Combat/450 Bushmaster)
- 3/4-24 Thread (Misc .458's)
- 49/64-20 Thread (50 Caliber)

Bowers Vers-458 Suppressor $825

SCG-10
Free Float Tube Hand Guard - $65

SCG-11C​

Restricted State, Compliant Magazines.  Available for California/Colorado etc.  $49

DO NOT use Magpul P-Mags with your 458 SOCOM Rifle.

MIG3-15 15.0" Add $175
MIG3-12 12.6" Add $165
MIG3-10 10.5" Add $145
MIG3-09 9.25" Add $135
MIG3-07 7.25" Add $125

These 10 rounds magazines are equipped with black anodized aluminum center feed followers and base plates engraved

".458 SOCOM 10 rounds".  These magazines will not accept a round of 5.56/.223 ammunition and are not readily convertible to 5.56/.223 due to their non-removable base plates. Also available in 7 round capacity. (No shipments to the City of New York or Monroe County New York)

Also available in:
- 5/8-32 Thread (Rock River)
- 11/16-24 Thread (Wilson Combat/450 Bushmaster)
- 3/4-24 Thread (Misc .458's)
- 49/64-20 Thread (50 Caliber)

Available in 14in. or 16.5in. Chromoly Barrels Only!


Five ounces lighter than our standard 16.25in barrel.
.750" Gas Block required. Barrel weight: 1.63 lbs.

SCM01-LW
Lightweight profile .850/.750/.730 1:14 twist Barrel/Bolt Combo $324

Feed ramp machined for wide body casings.

SCM21
Big Bore Barrel Extension $30

SCM20
.458 SOCOM Cartridge Slotted Case Gauge $45

SCM16
Hand Guard Cap .875" $15
Must use Tromix offset picatinny rail gas block when using this cap.

SCM15
Barrel Nut w/Delta Pack $25

SCM11
Complete .458 SOCOM Bolt & Carrier Group $205

SCM10c Carbon Steel
SCM10s Stainless Steel

For indexing muzzle brake.  

Specify size and finish type

SCM10
.458 SOCOM Crush Washer $3.00

SCM04c Carbon Steel $35
SCM04s Stainless Steel $40

4140 Steel Slim-Line Low Profile Gas Block AR-15/AR-10 .875”

​Gas Block Dimensions - .773" up from bore center, .622" down from bore center, 1.030" wide.

SCM04
.458 SOCOM .875” Gas Block

SCM03
.458 SOCOM Bolt Only $110


Includes ejector, extractor and gas rings.

Barrel profile is .900" under the hand guards, .875" at the gas block, and .800" at the muzzle. Threaded 5/8-24 with a 1:14 twist. Barrel weight: 1.34 lbs.

SCM02P10
.458 SOCOM 10.5in. - Pistol length gas system

Barrel profile is 1.00” under the hand guards, .875” at the gas block, and .850” at the muzzle. Threaded 5/8-24 with a 1:14 twist. This barrel is intended to be used with a permanently attached Tromix muzzle brake SCM07 bringing the overall barrel length to 16.25”.
Barrel weight: 1.69 lbs

SCM02P12
.458 SOCOM 12in. Pistol length gas system

SCM02R14
.458 SOCOM 14.0in. Carbine length gas system.

Install Muzzle Break or Radial Comp instead of Flash Hider - add $30
Matte Stainless Steel - add $25

​with SCM02R14-16 Barrel - add $150

Includes 16.25" barrel, flash hider, picatinny rail gas block, bolt/carrier and charging handle. Ready to fire on your lower receiver.

SCM18
Complete assembled 16.25" .458 SOCOM upper $699

Ejection port enlarged, includes forward assist and ejection port cover.
Tech Tip: To enhance feeding reliability, it is recommended to blend the barrel feed ramp into the upper receiver after barrel installation, as shown. (Warning: DO NOT Modify the steel locking lugs on barrel extension.)

Matte Stainless Steel - add $25

SCM01
.458 SOCOM 16.25in. Barrel/Bolt Combo $299

To place an order for .458 SOCOM parts please contact Tromix at: (918) 543-3456