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ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Up to 23% Off w/ Free S&H — 8 models

ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Burnt Bronze, UA300B-BR5-TCML5-BB
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Sniper Grey, UA300B-BR5-TCML5-SG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Olive Drab Green, UA300B-BR5-TCML5-ODG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Flat Dark Earth, UA300B-BR5-TCML5-FDE
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Burnt Bronze, UA300B-BR5-TCML5-BB
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ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Burnt Bronze, UA300B-BR5-TCML5-BB
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
2 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Sniper Grey, UA300B-BR5-TCML5-SG
3 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Sniper Grey, UA300B-BR5-TCML5-SG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Olive Drab Green, UA300B-BR5-TCML5-ODG
4 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Olive Drab Green, UA300B-BR5-TCML5-ODG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
5 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
6 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK
7 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Flat Dark Earth, UA300B-BR5-TCML5-FDE
8 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Flat Dark Earth, UA300B-BR5-TCML5-FDE
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
9 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
10 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
11 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK
12 of 12 images
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK

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ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

Product Info for ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle

This upper combines a 6061-T6 billet receiver with tight milspec tolerances and a compact 5in M-LOK handguard featuring an integrated handstop for confident handling. The 5in 4150 CMV barrel with a 1:7 twist, chambered in .300 AAC Blackout, is optimized for versatile loads in tight quarters. A 5/8x24 aluminum flash can, .750 steel gas block, steel barrel nut, and micro gas system ensure smooth, reliable cycling. Finished with an MPI-tested nitride BCG, forged extended-latch charging handle, and full milspec forward assist and ejection port hardware, this upper is compact, clean, and built to hit hard.image

Specifications for ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle:

Manufacturer: ABC RIFLE COMPANY
Caliber: .300 AAC Blackout
Barrel Length: 5 in
Barrel Twist Rate: 1-8
Firearms Threads Per Inch: 5/8x24
Muzzle Device: Muzzle Diverter Flash Can
Handguard Length: 5 in
Gun Rail: M-LOK
Gun Type: Rifle
Gun Make: AR Platform
Gun Model: AR-15
Gas Block Journal Size-Length: .750 in
Bolt Carrier Group Included: MIL-SPEC
Charging Handle Included: MIL-SPEC

Package Contents:

  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle

What firearm models does the manufacturer say ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle is compatible with?

The manufacturer suggests that ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle is compatible with AR-15

ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Orderable Models

List of Orderable Models

  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Sniper Grey, UA300B-BR5-TCML5-SG , MPN: UA300B-BR5-TCML5-SG , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-SG
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, White, UA300B-BR5-TCML5-STW , MPN: UA300B-BR5-TCML5-STW , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-STW
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Black, UA300B-BR5-TCML5-BLK , MPN: UA300B-BR5-TCML5-BLK , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-BLK
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Burnt Bronze, UA300B-BR5-TCML5-BB , MPN: UA300B-BR5-TCML5-BB , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-BB
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Red, UA300B-BR5-TCML5-RD , MPN: UA300B-BR5-TCML5-RD , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-RD
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Tungsten, UA300B-BR5-TCML5-TNG , MPN: UA300B-BR5-TCML5-TNG , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-TNG
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Olive Drab Green, UA300B-BR5-TCML5-ODG , MPN: UA300B-BR5-TCML5-ODG , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-ODG
  • ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle, Flat Dark Earth, UA300B-BR5-TCML5-FDE , MPN: UA300B-BR5-TCML5-FDE , Code: 69B-URC-ABC27RE-UA300B-BR5-TCML5-FDE
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Last updated 2026-08-24 UTC.