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CMMG, Inc .300 AAC Blackout Upper 16in, MK4LE 30BF8C0

CMMG, Inc .300 AAC Blackout Upper 16in, M300 Profile Threaded Barrel, M4 Hand Guard, Black, 30BF8C0
CMMG, Inc .300 AAC Blackout Upper 16in, M300 Profile Threaded Barrel, M4 Hand Guard, Black, 30BF8C0
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CMMG, Inc .300 AAC Blackout Upper 16in, M300 Profile Threaded Barrel, M4 Hand Guard, Black, 30BF8C0

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Questions & Answers
Customer Reviews
Most Recent Reviews
300 Blackout Upper by dalegoble, December 26, 2016
Ran this upper today at the range for the first time. Ran Factory 125gr Ammo, Hand-loads 110,125,147.. Ran couple hundred rounds. Ran Flawless....No Issues. Lower is off a Ruger .223 M4 Stock .223 Buffer and Buffer spring. Great Upper...
Read 1 Review

Product Discontinued by Manufacturer

CMMG, Inc .300 AAC Blackout Upper 16in, MK4LE has been discontinued by CMMG and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for CMMG, Inc .300 AAC Blackout Upper 16in, MK4LE

Sixteen inch M300 profile barrel, WASP Treated 4140 chrome-moly steel , 1:7 inch twist, 5/8-24 threaded. M4 hand guard. Sights/gas block: F Marked front sight base. M16 bolt group.image

Specifications for CMMG, Inc .300 AAC Blackout Upper 16 Inch M300 Profile Threaded Barrel M4 Hand Guard Black 30BF8C0:

Mfg Item Num:  30BF8C0
Type:  ACCESSORIES - GUN ACCESSORIES - UPPER RECEIVERS
Barrel Length:  16
made in specialized factories:  made in specialized factories
Caliber:  .300 AAC Blackout
Tactica:  Tactical
Finish:  Black
Caliber-Gauge:  .300 BLACKOUT
Master Model Header:  CMMG .300 AAC Blackout Upper

Ammunition

1–40 / 40
Previous
Best Rated
Hornady Subsonic .300 AAC Blackout 190 grain Subsonic eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80877
Hornady Subsonic .300 AAC Blackout 190 grain Subsonic eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80877
(22)
List: $36.89 (Save 22%)
$28.79
$1.44/Round
Remington .300 AAC Blackout UMC 220 Grain Open Tip Flat Base Brass Cased Centerfire Rifle Ammunition
Remington .300 AAC Blackout UMC 220 Grain Open Tip Flat Base Brass Cased Centerfire Rifle Ammunition
(3)
As Low As (Save Up to 22%)
$276.09
$1.51 - $1.73/Round
See all 2 models
SinterFire Reduced Hazard .300 AAC Blackout 110 Grain Frangible Brass Cased Pistol Ammo, 50 Rounds, 855040006815
SinterFire Reduced Hazard .300 AAC Blackout 110 Grain Frangible Brass Cased Pistol Ammo, 50 Rounds, 855040006815
(3)
List: $57.99 (Save 36%)
$36.89
$0.74/Round
Up to 20% Coupon
Super Vel Ammunition 300 Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammunition
Super Vel Ammunition 300 Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammunition
As Low As (Save Up to 27%)
$51.09
$0.98 - $1.02/Round
See all 2 models
Best Rated
Winchester Super Suppressed .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, SUP300BLK
Winchester Super Suppressed .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, SUP300BLK
(14)
List: $16.89 (Save $1.50)
$15.39
$0.77/Round
20% Coupon
Super Vel Ammunition 300 Blackout 150 grain Full Metal Jacket Brass Cased Rifle Ammunition
Super Vel Ammunition 300 Blackout 150 grain Full Metal Jacket Brass Cased Rifle Ammunition
As Low As (Save Up to 31%)
$40.29
$0.77 - $0.81/Round
See all 2 models
Best Rated
Hornady BLACK .300 AAC Blackout 208 grain A-MAX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80891
Hornady BLACK .300 AAC Blackout 208 grain A-MAX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80891
(6)
List: $34.89 (Save 26%)
$25.99
$1.30/Round
5% Coupon
Remington .300 AAC Blackout 150 Grains Full Metal Jacketed Brass Cased Centerfire Rifle Ammunition
Remington .300 AAC Blackout 150 Grains Full Metal Jacketed Brass Cased Centerfire Rifle Ammunition
(2)
As Low As (Save Up to 24%)
$30.19
$1.47 - $1.51/Round
See all 2 models
Freedom Munitions HUSH Subsonic .300 Blackout 220 Grain HPBT Brass Rifle Ammo, 50 Rounds, FMH300H220N50
Freedom Munitions HUSH Subsonic .300 Blackout 220 Grain HPBT Brass Rifle Ammo, 50 Rounds, FMH300H220N50
(1)
List: $63.19 (Save 24%)
$48.19
$0.96/Round
5% Coupon
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
(1)
As Low As (Save Up to 17%)
$34.59
$1.67 - $1.73/Round
See all 2 models
Best Rated
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Flat Base, 110 Grain, 20 - Rounds, 21548
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Flat Base, 110 Grain, 20 - Rounds, 21548
(6)
List: $46.29 (Save 14%)
$39.69
$1.98/Round
Best Rated
Hornady Frontier .300 AAC Blackout 125 Grain Full Metal Jacket Centerfire Rifle Ammunition
Hornady Frontier .300 AAC Blackout 125 Grain Full Metal Jacket Centerfire Rifle Ammunition
(5)
As Low As (Save Up to 30%)
$26.79
$1.19 - $1.34/Round
See all 3 models
Hornady Ammo Custom, .300 Blackout, 110 Grain, Centerfire Rifle Ammo, CX Polymer Tip, 20 Rounds, 808794
Hornady Ammo Custom, .300 Blackout, 110 Grain, Centerfire Rifle Ammo, CX Polymer Tip, 20 Rounds, 808794
(4)
List: $41.39 (Save 19%)
$33.39
$1.67/Round
Best Rated
Hornady BLACK .300 AAC Blackout 110 grain V-MAX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80873
Hornady BLACK .300 AAC Blackout 110 grain V-MAX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80873
(10)
List: $34.89 (Save $2.40)
$32.49
$1.62/Round
Remington .300 AAC Blackout UMC 150 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 200 Rounds, 20107
Remington .300 AAC Blackout UMC 150 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 200 Rounds, 20107
(1)
List: $387.99 (Save 33%)
$258.49
$1.29/Round
Hornady Custom .300 AAC Blackout 135 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80881
Hornady Custom .300 AAC Blackout 135 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80881
(3)
List: $40.69 (Save 19%)
$32.99
$1.65/Round
SIG SAUER Elite Match Grade .300 AAC Blackout 220 grain Open Tip Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, E300A2-20
SIG SAUER Elite Match Grade .300 AAC Blackout 220 grain Open Tip Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, E300A2-20
(4)
List: $29.99 (Save 10%)
$26.89
$1.34/Round
Final Sale
Fort Scott Munitions .300 BlackOut 150 Grain CNC Machined Copper Brass Riffle Ammo, 20 Rounds, 300-150-SCV
Fort Scott Munitions .300 BlackOut 150 Grain CNC Machined Copper Brass Riffle Ammo, 20 Rounds, 300-150-SCV
List: $37.32 (Save 15%)
$31.79
$1.59/Round
Wilson Combat Hornady V-MAX .300 AAC Blackout 110 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-110-VMAX-20RD
Wilson Combat Hornady V-MAX .300 AAC Blackout 110 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-110-VMAX-20RD
(1)
List: $27.95 (Save 11%)
$24.99
$1.25/Round
Freedom Munitions .300 Blackout 125 Grain Full Metal Jacket Brass Rifle Ammo, 50 Rounds, FM300F125N50
Freedom Munitions .300 Blackout 125 Grain Full Metal Jacket Brass Rifle Ammo, 50 Rounds, FM300F125N50
(1)
List: $37.19 (Save 24%)
$28.39
$0.57/Round
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Boat Tail , 120 Grain, 20 - Rounds, 30827
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Boat Tail , 120 Grain, 20 - Rounds, 30827
List: $48.99 (Save 20%)
$39.09
$1.95/Round
Nosler .300 AAC Blackout, Ballistic Tip , 125 grain, Brass Cased, 20 Rounds, 61032
Nosler .300 AAC Blackout, Ballistic Tip , 125 grain, Brass Cased, 20 Rounds, 61032
List: $44.95 (Save 18%)
$36.89
$1.84/Round
Best Rated
Barnes 300 AAC Blackout, 120 Grain, Jacketed Hollow Point/JHP, Brass Cased Centerfire Rifle Ammo, 20 Rounds, 32004
Barnes 300 AAC Blackout, 120 Grain, Jacketed Hollow Point/JHP, Brass Cased Centerfire Rifle Ammo, 20 Rounds, 32004
(6)
List: $27.99
$27.69
$1.38/Round
Best Rated
SIG SAUER SBR Solid Copper .300 AAC Blackout 120 grain Hunting Tipped Brass Cased Centerfire Rifle Ammo, 20 Rounds, E300H1-SBR-20
SIG SAUER SBR Solid Copper .300 AAC Blackout 120 grain Hunting Tipped Brass Cased Centerfire Rifle Ammo, 20 Rounds, E300H1-SBR-20
(6)
List: $39.99 (Save 24%)
$30.59
$1.53/Round
Federal Premium Power-Shok Copper .300 AAC Blackout 120 Grain Copper Hollow Point Centerfire Rifle Ammo, 20 Rounds, 300BLK120LFA
Federal Premium Power-Shok Copper .300 AAC Blackout 120 Grain Copper Hollow Point Centerfire Rifle Ammo, 20 Rounds, 300BLK120LFA
List: $43.99 (Save 20%)
$34.99
$1.75/Round
Hornady Black, .300 AAC Blackout, 110 Grain, Ntx Centerfire, Rifle Ammo, 20 Rorunds, 80862-20RD
Hornady Black, .300 AAC Blackout, 110 Grain, Ntx Centerfire, Rifle Ammo, 20 Rorunds, 80862-20RD
List: $44.20 (Save 17%)
$36.69
$1.83/Round
Liberty Ammunition OverWatch .300 AAC Blackout 96 grain Open Cavity Design Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, LA-OW300-96-2500
Liberty Ammunition OverWatch .300 AAC Blackout 96 grain Open Cavity Design Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, LA-OW300-96-2500
List: $51.99 (Save 18%)
$42.59
$2.13/Round
Up to 8% Coupon
Freedom Munitions .300 Blackout 147 Grain Full Metal Jacket Brass Rifle Ammunition
Freedom Munitions .300 Blackout 147 Grain Full Metal Jacket Brass Rifle Ammunition
As Low As (Save 12%)
$32.99
$0.65 - $0.66/Round
See all 3 models
Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
List: $53.49 (Save 23%)
$40.99
$2.05/Round
20% Coupon
Freedom Munitions .300 Blackout 150 Grain Full Metal Jacket Brass Rifle Ammunition
Freedom Munitions .300 Blackout 150 Grain Full Metal Jacket Brass Rifle Ammunition
(2)
As Low As (Save 12%)
$33.49
$0.66 - $0.67/Round
See all 3 models
Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
List: $59.99 (Save 19%)
$48.59
$2.43/Round
Best Rated
SIG SAUER Elite Hunting Solid Copper .300 AAC Blackout 120 grain Open Tip Match Brass Cased Centerfire Rifle Ammunition
SIG SAUER Elite Hunting Solid Copper .300 AAC Blackout 120 grain Open Tip Match Brass Cased Centerfire Rifle Ammunition
(12)
As Low As (Save Up to $2.86)
$35.09
$1.70 - $1.75/Round
See all 2 models
Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Centerfire Rifle Ammunition
Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Centerfire Rifle Ammunition
(1)
As Low As (Save Up to 12%)
$34.49
$1.72 - $1.73/Round
See all 2 models
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
As Low As (Save Up to $3.20)
$20.49
$1.02 - $1.18/Round
See all 2 models
Magtech 300 Blackout 200 Grain Full Metal Jacket Subsonic Brass Cased Rifle Ammo, 50 Rounds, 300BLKSUBA
Magtech 300 Blackout 200 Grain Full Metal Jacket Subsonic Brass Cased Rifle Ammo, 50 Rounds, 300BLKSUBA
(1)
List: $50.46 (Save 17%)
$41.79
$0.84/Round
Underwood Ammo .300 AAC Blackout 220 Grain Hollowpoint Boat Tail Match Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 419
Underwood Ammo .300 AAC Blackout 220 Grain Hollowpoint Boat Tail Match Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 419
(2)
List: $54.99 (Save 25%)
$40.99
$2.05/Round
Sellier & Bellot eXergy .300 AAC Blackout 110 Grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, SB300BLKXA
Sellier & Bellot eXergy .300 AAC Blackout 110 Grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, SB300BLKXA
(3)
List: $28.65 (Save 26%)
$21.29
$1.06/Round
Magtech 300 Blackout 123 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 300BLKB
Magtech 300 Blackout 123 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 300BLKB
List: $50.46 (Save 21%)
$39.69
$0.79/Round
Winchester USA White Box 300 Blackout 147 Grains Full Metal Jacketed Brass Rifle Ammo, 20 Rounds, USA300B147
Winchester USA White Box 300 Blackout 147 Grains Full Metal Jacketed Brass Rifle Ammo, 20 Rounds, USA300B147
List: $16.09
$15.99
$0.80/Round
Federal Premium SUBSONIC .300 AAC Blackout 220 Grain Open Tip Match Centerfire Rifle Ammo, 20 Rounds, AE300BLKSUP2
Federal Premium SUBSONIC .300 AAC Blackout 220 Grain Open Tip Match Centerfire Rifle Ammo, 20 Rounds, AE300BLKSUP2
List: $35.99 (Save 10%)
$32.39
$1.62/Round
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Ammo Boxes

1–1 / 1
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MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
(12)
List: $17.89 (Save 22%)
$13.99
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CMMG, Inc .300 AAC Blackout Upper 16in, MK4LE Unavailable & Discontinued Models

List of Unorderable Models

  • CMMG, Inc .300 AAC Blackout Upper 16in, M300 Profile Threaded Barrel, M4 Hand Guard, Black, 30BF8C0 , MPN: 30BF8C0 , UPC: 815835010830 , Code: 2CM-UFH-30BF8C0
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