American Tactical Milsport 300 Blackout Optics Ready Semi-Automatic Rifle with MLOK Rail

American Tactical Milsport 300 Blackout Optics Ready Semi-Automatic Rifle with MLOK Rail
$499.99 $629.95

Temporarily Out of Stock

Includes FREE shipping
  • DANIEL DEFENSE DDM4V7 5.56MM 16` BARREL BLACK MAGPUL FURNATURE

    Daniel Defense DDM4 V7 5.56mm Semi-Automatic Rifle with 16 Inch Barrel and MFR Rail
    $2,013.00 $1,349.99

  • SPRINGFIELD SAINT EDGE 5.56 EVAC PISTOL 7.5` BBL

    Springfield Saint Edge EVAC 5.56mm AR-Pistol with 7.5 in Barrel
    $1,949.00 $1,749.99

  • COLT AR15A4 5.56MM SEMI-AUTOMATIC RIFLE

    Colt AR15A4 5.56mm Semi-Automatic Rifle
    $1,399.00 $1,169.99

  • NEXGEN NG15 223 WYLDE RIFLE PEWTER NITRIDE

    NexGen Arms NG15 223 Wylde Semi-Auto Rifle with Pewter Nitride Finish
    $449.99

  • NEXGEN NG15 223 WYLDE RIFLE BLACK NITRIDE

    NexGen Arms NG15 223 Wylde Semi-Auto Rifle Black Nitride Finish
    $449.99

  • NEXGEN NG15 223 WYLDE RIFLE BRONZE NITRIDE

    NexGen Arms AR-15 223 Wylde Semi-Auto Rifle with Bronze Nitride Finish
    $449.99

  • ONE HORSE OH-15 5.56 15` RAIL M-LOK

    One Horse OH-15 5.56 NATO Semi-Automatic Rifle with 16 Inch Socom Barrel and M-LOK Handguard
    $549.99 $439.99

  • BEAR CREEK ARSENAL BC-15 16` 300 BLKOUT 30RD BLK

    Bear Creek Arsenal BC-15 .300 Blackout AR-15 Semi-Auto Rifle
    $424.99 $419.99

  • BEAR CREEK ARSENAL BC-15 16` 556NATO 30RD BLK

    Bear Creek Arsenal BC-15 5.56 NATO AR-15 Semi-Auto Rifle
    $424.99 $419.99

  • DIAMONDBACK DB15 5.56 NATO 30+1 16` BLACK NITRIDE THREADED BARREL TIGER STRIPE CAMO CERAKOTE

    Diamondback DB15 5.56 NATO Semi-Auto Rifle with Tiger Stripe Cerakote Finish
    $828.00 $729.99

  • SIG SAUER 516 G3 5.56 NATO 30+1 16` BLACK THREADED BARREL, BRONZE CERAKOTE ALUMINUM RECEIV

    Sig Sauer 516 G3 5.56 NATO Semi-Auto Rifle with Bronze Signature Finish
    $2,299.99 $2,099.99

  • Hornady 300 Blackout 208 gr Subsonic FMJ Frontier 20/Box

    Hornady 300 Blackout 208 gr Subsonic FMJ Frontier 20/Box
    $15.99
    ($0.80 / round)

  • Hornady 300 Blackout 190 gr Subsonic Sub-X 20/Box

    Hornady 300 Blackout 190 gr Subsonic Sub-X 20/Box
    $27.99
    ($1.40 / round)

  • Norma 300 Blackout 147 gr FMJ Range and Training 20/Box

    Norma 300 Blackout 147 gr FMJ Range and Training 20/Box
    $21.49 $16.99
    ($0.85 / round)

  • Sig Sauer 300 Blackout 125 gr FMJ Elite Performance 20/Box

    Sig Sauer 300 Blackout 125 gr FMJ Elite Performance 20/Box
    $17.95 $17.30
    ($0.87 / round)

  • Federal 300 Blackout 150 gr FMJ Boat Tail American Eagle 20/Box

    Federal 300 Blackout 150 gr FMJ Boat Tail American Eagle 20/Box
    $33.99 $15.28
    ($0.76 / round)

  • Hornady 300 Blackout 125 gr FMJ Frontier 20/Box

    Hornady 300 Blackout 125 gr FMJ Frontier 20/Box
    $13.99
    ($0.70 / round)

  • Hornady 300 Blackout 110 gr V-Max Black 20/Box

    Hornady 300 Blackout 110 gr V-Max Black 20/Box
    $26.99
    ($1.35 / round)

  • Remington 300 AAC Blackout 220 gr OTFB UMC 20/Box

    Remington 300 AAC Blackout 220 gr OTFB UMC 20/Box
    $39.99 $26.44
    ($1.32 / round)

  • Hornady 300 Blackout 135 gr FTX Custom 20/Box

    Hornady 300 Blackout 135 gr FTX Custom 20/Box
    $29.99
    ($1.50 / round)

  • Sig Sauer 300 Blackout 125 gr Sierra MatchKing Elite Match OTM 20/Box

    Sig Sauer 300 Blackout 125 gr Sierra MatchKing Elite Match OTM 20/Box
    $25.95 $24.68
    ($1.23 / round)

  • Federal 300 Blackout 150gr Jacketed Soft Point Power-Shok 20/Box

    Federal 300 Blackout 150gr Jacketed Soft Point Power-Shok 20/Box
    $41.99 $19.99
    ($1.00 / round)

  • Hornady 300 Blackout 110 gr CX Custom 20/Box

    Hornady 300 Blackout 110 gr CX Custom 20/Box
    $27.99
    ($1.40 / round)

  • MAGPUL PMAG 30 GEN M2 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M2 5.56 NATO 30 Round Black Magazine
    $12.95 $9.85

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 30 Round Black Magazine
    $14.95 $11.99

  • AMEND2 MOD 2 AR-15 5.56 MM 30 RD BLACK MAG

    Amend2 AR15/M4 Mod.2 5.56 NATO 30 Round Magazine (Black)
    $14.99 $6.97

  • ATI SCHMEISSER S60 223/5.56MM 60-ROUND AR-15 MAGAZINE WITH WINDOW (GEN2)

    American Tactical Schmeisser S60 5.56 NATO 60 Round AR-15 Magazine with Window (Gen2)
    $84.95 $24.99

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD MAG (TAN)

    Magpul PMAG GEN M3 5.56 NATO 30 Round Coyote Tan Magazine
    $14.95 $11.18

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD WINDOW MAG

    Magpul PMAG GEN M3 5.56 NATO 30 Round Black Magazine with Window
    $17.95 $14.48

  • MAGPUL GEN M3 WINDOW 30RD 5.56X45MM/223REM BLACK POLYMER

    Magpul PMAG GEN M3 5.56 NATO 30 Round MCB Magazine with Window
    $14.48

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD WINDOW MAG (TAN)

    Magpul PMAG GEN M3 5.56 NATO 30 Round Coyote Tan AR/M4 Magazine with Window
    $17.95 $14.48

  • AMEND2 AR-15 5.56/.223 MOD-A BLACK 30RND CHOCOLATE CHIP CAMO

    Amend2 AR15 5.56 NATO 223 Remington 30 Round Magazine Chocolate Chip Camo
    $11.07

  • MAGPUL PMAG GEN M3 WINDOW 30RND 5.56X45MM/223REM OD GREEN POLYMER

    Magpul PMAG 30 AR/M4 Gen M3 Window - OD Green
    $17.95 $14.39

  • AMEND2 AR15 30RND 5.56MM MOD-C TRANSLUCENT PINK DESERT NIGHT CAMO MAG

    Amend2 AR15 5.56 NATO 30 Round Factory Magazine with Pink Desert Night Camo Finish
    $8.75

  • AMEND2 AR-15 5.56/.223 MOD-A BLACK 30 ROUND SILENT LIBERTY

    Amend2 AR 15 5.5mm /223 Remington 30 Round Silent Liberty Magazine
    $11.07

Product Description

What's in the Box

  • ATI Mil-Sport 300 AAC Blackout Semi-Automatic Rifle
  • (1) 30-Round Magazine
  • Cable Lock
  • Owner's Manual

The Mil-Sport is made from quality forged 4140 aluminum, and is built to take anything you throw at it. Introduced in 2012, the Mil-Sport M4 Carbines became instant hits among customers looking for top quality AR-15 style rifles with forged aluminum receivers. Fine-tuned with many popular features, these U.S. built beauties perform perfectly right out of the box, and are priced just right.

Firearm Specifications

  • Manufacturer: American Tactical Imports
  • Model: Mil-Sport 300 Blackout
  • Item Number: ATIG15MS300ML15 
  • Caliber: 300 AAC Blackout
  • Barrel Length: 16"
  • Twist Rate: 1:8"
  • Upper & Lower Receiver: Aluminum Forged
  • Rail: 16" MLOK Rail
  • Magazine Capacity: 30-Rounds

Customer Comments & Questions

Customer Reviews

(5 out of 5) Very happy with this purchase
by Arles from Cola, SC on February 29, 2020

This ATI Milsport 300 Blackout exceeded my exceptions. Have only run a couple clips of Magtech 115grain HP. So far it runs great and seems to be very accurate. Only complaints I have are easy enough to fix if your handy.
Hand guard is just a tad out of alignment with the upper housing. The 6 screws holding he hand guard in place are thread locked. So heat them up before attempting to unscrew. = Plastic trigger, hammer, and upper/lower assembly pins. They seem up to the task, but only time will tell.

(5 out of 5) AT milsport 300 Blackout
by Fleetwood from Fairburn, GA on July 12, 2022

Ordered on a Friday and it was delivered the following Thursday. Sighted in with 20 rounds of Winchester 125 grain 300 Blackout. No jams, no misfires. Nice overall feel. Enjoyed shooting. Nice gun at a nice price.