Sig Legion


Sig P320 - Sidearm Choice of the U.S. Army

Kimber Firearms

Remington Firearms

Magtech Ammo

Magpul Accessories

Recently Viewed
Colt AR15 Tactical Carbine, MagPul BUIS, 30 Rnd Mag

Colt AR15 Tactical Carbine, MagPul BUIS, 30 Rnd Mag

Colt AR15 Tactical Carbine, MagPul BUIS, 30 Rnd Mag

Images shown may not be an exact representation of the actual product.
You may contact us if you have questions about the exact specifications of this item.

ITEM #: 098289023032
More Items From: Colt

Colt  Made in the USA

AR-15 A3 Tactical Carbine 5.56/223 16" Heavy Barrel, 4-Position CAR Stock 

Features a 16 inch heavy barrel with a 1/9 twist which allows for flexibility in ammunition selection.

The AR-15A3 model AR6721 is an exceptional patrol rifle with tactical accuracy chosen by federal, state and local agencies. The 16.1" (40.9 cm) heavy barrel with 1 in 9" (229 mm) rifling twist allows flexibility in ammunition selection. The telescopic butt stock adjusts to four positions to enhance mobility and fit to a wider range of operators. Easily removable, the flat top upper receiver allows for easy mounting of optical, night vision and other tactical sighting systems. The tactical carbine is the answer to all the requirements of modern law enforcement.



  • Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components 
  • Accommodates the full range of 5.56mm ammunition, including the NATO M855/SS109 and U.S. M193, utilizing a rifling twist of 1:9
  • Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire 
  • 4-position sliding buttstock allows the weapon to adapt to users of different sizes and physical characteristics as well as various firing positions and clothing variations 
  • Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications 
  • Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures 
  • Ejection port cover protects the chamber from dust and mud 
  • Field strips easily without special tools for simple field user maintenance 
  • Flat top receiver allows for easy mounting of accessories  
  • Flip up rear sight features dual apertures (0-200m, 300-600m) and adjusts for both windage and elevation 
  • High strength materials add durability to the forearm, buttstock and pistol grip for greater comfort and effectiveness 


Quantity :
Available Online!
Ships in 6-8 business days
Price : $941.19 Shipping Options
We offer the following delivery options when you check out:
  • Ground Shipping  -  $12.99
  • 1-2 Day Shipping  -  $71.40
  • 2-3 Day Shipping  -  $60.40
  • AK, HI, US Territories Shipping  -  $80.40

Express orders for items available to ship the same business day must be placed by 1 PM MST. Express orders received after 1PM ready for immediate shipment will not be shipped until the following business day.

Note: Delivery times are approximate and although generally accurate are not guaranteed. FFL transfer issues may affect delivery times.

Express shipping is only available in the continental US to non-PO Box addresses. AP/FPO addresses may add to the delivery time.

POF GEN4 Lower Receivers

Security Seals