The 21st Tec TEC47 AR-10 in 7.62x39mm Accepts AK Mags

From the minds at 21st Tec comes a mashup of 7.62x39mm power and AR engineering with the TEC47. The rifle is a true AR-10 (DPMS/LR308 size) chambered in 7.62x39mm and accepts AK-47 magazines. Likewise, the rifle includes feature enhancements like a 2-stage match trigger, threaded barrel, and adjustable gas block.

The 21st Tec TEC47 Rifle

Building on billet T6 aircraft-grade aluminum receivers, the TEC47 delivers a durable platform with a Type III hard coat anodized finish. The rifle features a Mil-Spec buffer tube and is shouldered via a 6-position adjustable CCS Carbine stock. Likewise, a THRIL RTG grip provides a comfortable interface to the action.

Chambered in 7.62x39mm, the 16-inch barrel with 1:10 twist is housed within a 15-inch M-LOK handguard. Additionally, the barrel has 5/8×24 threads for affixing a suppressor and comes with a birdcage flash hider installed. Correspondingly, the gas block is adjustable for use with a suppressor.

The 15-inch handguard features M-LOK slots around its circumference, while a full-length Picatinny rail runs the top. As a result, users can affix the optics and other accessories of their choice.

The innovation of the TEC47 is in its bolt carrier group (BCG), which maintains the DPMS/LR308 length and is specifically designed for the 7.62x39mm. Likewise, the rifle is designed to fit AK magazines (note: it does not accept US Palm magazines) and ships with one MAGPUL 30-round AK PMAG. Safeguarding the upper receiver from cam pin wear is a cam pin wear plate.

The controls and charging handle remain true to the AR platform for familiar handling. Finally, rounds are sent downrange via the two-stage match trigger.


The 21st Tec TEC47 rifle is available now with an MSRP of $1,399.00. For more info, please visit 21st-tec.com.

21st Tec TEC47 Specs

(Photo by 21st Tec)

Caliber: 7.62×39
Operation: Direct Impingement
Barrel Length: 16 inches
Twist Rate: 1:10
Overall Length: 35-39 inches
Weight: 8.5 pounds
Mag Capacity: 30 round AK PMAG
Rail Length: 15 inch M-LOK
Stock: CCS 6-position
Gas Block: Adjustable
Trigger: 2-stage match trigger
MSRP: $1,399.00


  • Platform: AR-10 (DPMS/LR308) compatible with AK magazines.
  • Gas System: Direct Impingement.
  • Barrel: 16-inch, 1/10 twist.
  • Material: Billet T6 Aircraft Aluminum receivers.
  • Gas Block: Adjustable for suppressor use.
  • Buffer Tube: Mil-Spec design.
  • Stock: 6-position CCS Carbine adjustable stock.
  • Grip: THRIL RTG grip.
  • Handguard: 15-inch M-LOK with MIL1913 Rail.
  • Size & Weight: 8.5lbs; 35 to 39 inches length.
  • Trigger: 2 Stage Match Trigger.
  • Muzzle: Flash Hider with 5/8×24 threads.
  • Colors: Type III Hard Coat Anodized Black
  • Magazines: Includes Magpul PMAG® 30 AK; compatible with metal AK47 magazines.

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