Colt AR-15 A4 Tactical Carbine 5.56x45 NATO with Lightweight Barrel

  • Item Number: AR6720
  • /
  • View More Items by Colt
  • /
  • Condition: NEW
$1,049.99 $1,199.00
No Longer Available
This product is no longer available. We don't know when or if it will be back in stock.
  • COLT CARBINE 5.56X45MM RIFLE WITH A2 GRIP

    Colt M4 Carbine 5.56x45 NATO CR6920 Series with Magpul Furniture
    $1,029.99

  • ADAMS ARMS WITCH DOCTOR AR-15 5.56 16` BARREL FREEFLOAT FOREND

    Adams Arms VooDoo Innovations Witch Doctor 5.56mm AR-15
    $679.99

  • SMITH AND WESSON MP15 SPORT II 5.56MM OR WITH M-LOK

    Smith & Wesson MP15 Sport II 5.56mm Optics Ready Semi-Auto Rifle with M-LOK Handguard
    $999.99

  • RUGER AR-556 300 BLACKOUT WITH FREE FLOAT HANDGUARD

    Ruger AR-556 300 Blackout Semi-Auto Optics-Ready Rifle with Free-Float Handguard
    $819.00 $759.99

  • SPRINGFIELD SAINT 556 M-LOK AR15 B5 FURNITURE 10RD

    Springfield SAINT 5.56mm AR-15 Rifle with B5 Furniture (10-Round Model)
    $995.00 $799.99

  • RUGER AR-556 MPR 5.56MM

    Ruger AR-556 MPR 5.56mm Semi-Automatic Multi-Purpose Rifle
    $799.99

  • SMITH AND WESSON MP15 SPORT II 5.56 RIFLE

    Smith & Wesson MP15 Sport II 5.56mm Rifle with Dust Cover and Forward Assist
    $999.99

  • RUGER AR-556 5.56 NATO M4 AUTOLOADING RIFLE

    Ruger AR-556 5.56 NATO M4 Flat-Top Autoloading Rifle
    $849.99

  • RUGER AR-556 5.56MM WITH M-LOK

    Ruger AR-556 5.56mm Semi-Automatic Rifle with M-LOK and Heavy Contour Barrel
    $739.99

  • SMITH AND WESSON MP15 SPORT II OR 5.56 W/ CRIMSON TRACE OPTIC

    Smith & Wesson MP15 Sport II OR 5.56mm Semi-Auto Rifle with Crimson Trace Red/Green Dot Optic
    $999.99

  • SMITH AND WESSON MP15 SPORT II 5.56MM MAGPUL MOE M-LOK

    Smith & Wesson MP15 Sport II 5.56mm with Magpul MOE M-LOK
    $999.99

  • SMITH AND WESSON MP-15 SPORT II 5.56 OPTICS READY

    Smith & Wesson MP15 Sport II 5.56mm Optics Ready Rifle
    $999.99

  • Hornady 223 Rem 68 gr BTHP Match Frontier 20/Box

    Hornady 223 Rem 68 gr BTHP Match Frontier 20/Box
    $12.99
    ($0.65 / round)

  • Winchester 223 Rem 55 gr FMJ 20/Box

    Winchester 223 Rem 55 gr FMJ 20/Box
    $11.99
    ($0.60 / round)

  • PMC 5.56mm 55 gr FMJ-BT X-TAC 20/Box

    PMC 5.56mm 55 gr FMJ-BT X-TAC 20/Box
    $24.99
    ($1.25 / round)

  • Hornady 5.56 NATO 55 gr FMJ (M193) Frontier 20/Box

    Hornady 5.56 NATO 55 gr FMJ (M193) Frontier 20/Box
    $12.99
    ($0.65 / round)

  • PMC 223 Rem 55 gr FMJ BT Bronze 20/Box

    PMC 223 Rem 55 gr FMJ BT Bronze 20/Box
    $11.99
    ($0.60 / round)

  • Winchester 223 Rem 55 gr BTHP Super X Varmint and Target 20/Box

    Winchester 223 Rem 55 gr BTHP Super X Varmint and Target 20/Box
    $16.99
    ($0.85 / round)

  • Winchester 5.56mm M193 55gr FMJ USA Valor Series 125/Box

    Winchester 5.56mm M193 55gr FMJ USA Valor Series 125/Box
    $79.99
    ($0.64 / round)

  • Nosler 223 Rem 77 gr HPBT Custom Competition Match Grade 20/Box

    Nosler 223 Rem 77 gr HPBT Custom Competition Match Grade 20/Box
    $39.99
    ($2.00 / round)

  • PMC X-TAC 5.56mm NATO 62 gr M855 Green-Tip 20/Box

    PMC X-TAC 5.56mm NATO 62 gr M855 Green-Tip 20/Box
    $24.99
    ($1.25 / round)

  • Winchester 223 Rem 55 Gr PTRE Varmint X 20/Box

    Winchester 223 Rem 55 Gr PTRE Varmint X 20/Box
    $29.99
    ($1.50 / round)

  • Winchester 223 Remington 45 gr JHP 40/Box

    Winchester 223 Remington 45 gr JHP 40/Box
    $39.99
    ($1.00 / round)

  • Sig Sauer 223 REM 60 gr Elite Hunting HT 20/Box

    Sig Sauer 223 REM 60 gr Elite Hunting HT 20/Box
    $25.99
    ($1.30 / round)

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

    Magpul PMAG GEN M2 5.56mm 30-Round Black Magazine
    $12.95 $8.99

  • DANIEL DEFENSE AR15 223 REM 32 ROUND 5.56 MAG BLACK

    Daniel Defense AR15 Magazine 223 REM 5.56 NATO 32 Round Factory Magazine Black
    $23.00 $20.56

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

    Magpul PMAG GEN M3 5.56mm 30-Round Black Magazine with Window
    $19.99

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

    Magpul PMAG GEN M3 5.56mm 30-Round Black Magazine
    $16.99

  • MAGPUL PMAG 10 GEN M3 AR-15 556 NATO 10 RD MAG

    Magpul PMAG GEN M3 5.56mm 10-Round AR-15 Magazine
    $19.99

  • BLACK RAIN ORDNANCE AR15 30 ROUND TRUMP TRAIN MAGAZINE

    Black Rain Ordnance 5.56mm 30-Round AR-15 Magazine (Trump Train Edition)
    $15.99

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

    Magpul PMAG GEN M2 5.56mm 30-Round Magazine with Window
    $19.99

  • MAGPUL PMAG 40 GEN M3 AR-15 556 NATO 40 RD MAG

    Magpul PMAG 40 AR/M4 GEN M3 5.56mm 40-Round Magazine
    $29.99

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

    Magpul PMAG GEN M3 5.56mm 30-Round Coyote Tan Magazine
    $16.99

  • AMEND2 MOD 2 AR-15 556 30 RD BLACK MAG

    Amend2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Black)
    $14.99 $11.99

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

    Magpul PMAG GEN M3 5.56mm 30-Round Coyote Tan AR/M4 Magazine with Window
    $19.99

  • MAGPUL PMAG 20 GEN M3 AR-15 556 NATO 20 RD MAG

    Magpul PMAG GEN M3 5.56mm 20-Round Black Magazine
    $19.99

Product Description

What’s in the Box

  • Colt AR-15 Lightweight Carbine
  • Magpul® 20-Round PMAG
  • Magpul® MBUS Back-Up Sight
  • Cable Lock
  • Owners Manual

This AR6720 Lightweight LE Carbine delivers the high performance you’d expect from Colt. And with a 1 in 7” twist, ammunition selection is virtually unlimited.

Features these Magpul® accessories: MBUS Back-Up Sight and a 20-Round PMAG.

  • Model: AR-15A4
  • Caliber: 5.56x45 NATO
  • Barrel Length: 16.1” Lightweight
  • Bore: Chromed, 6 Grooves, 1-7” RH Twist
  • Front Sight: Adjustable Post for Elevation
  • Rear Sight: Flip-Up, Magpul® MBUS Back-Up Sight
  • Extended Length: 35.5”
  • Collapsed Length: 32”
  • Weight: 6.2 lbs.
  • Action: Direct Gas System, Locking Bolt
  • Finish: Matte Black

Customer Comments & Questions

Customer Reviews

(5 out of 5) The only true light AR....
by from Macon, Ga on

Ignore factory figures....The M4 16.1 is only a fraction of an ounce under 7lbs. This rifle is 6.25lbs, and with 20rd mag, still just under 6.5lbs.....Which ties a 10/22 in an stainless side folder...and shorter than same .22 in factory stock. If you want an AR that truly handles and weighs as a rimfire, this is THE one.

(5 out of 5) Nice AR
by from Charleston, SC on

Very well built!