Ensio KAR-21 16″ .223

The KAR-21 from Ensio Firearms is a modern, semi-automatic rifle for sport shooting – designed to use two different calibers in the same weapon. With just one tool you can change from .223 Rem to .308 Win. With its light weight, the KAR-21 is a rifle for every situation. Designed and manufactured in Finland.

Caliber change
All in one weapon. Thanks to Ensio's patented solution, you can easily change caliber from .223 Rem to .308 Win with just one tool and by changing only four parts – barrel, breech, magazine well and magazine. The conversion kit is sold separately.

Recoil and Control
The recoil of the KAR-21 is incredibly comfortable, thanks to the rifle's barrel being below the comb line. The rifle does not tend to rise even when firing rapidly.

The KAR-21 is fully ambidextrous, with both the safety lever (60 degrees) and magazine release accessible from both sides. The charging handle can be easily moved from left to right without tools.

True Customizability
The weapon features a full-length Stanag 4694 picatinny rail for attaching sights and night vision. Bipods, tactical lights, rails and other accessories can be easily attached to the M-lok mounts on the sides and bottom of the rifle. The rifle comes with multiple sling mounts for Quick Detach swivels and HK hooks.

Quick and Easy Field Cleaning
Disassemble, clean and service your rifle quickly and easily. There are no small parts or flying springs during disassembly. Fieldstrip is done without any tools.

All this in a compact set

Ensio has managed to squeeze all of this into a very lightweight package. The rifle weighs only 3.7 kg.

KAR-21 semi-automatic rifle
Caliber: .223 Rem 16″ or 18″ (18″ coming Q3 2024) / .308 Win 16″ or 20″
Length: 840mm (.223 Rem, 16″ barrel) 855mm (.308 Win, 16″ barrel) 955mm (.308 Win and 20 ” barrel)
Weight: 3.7 kg (When the barrel length is 16″ (410 mm))
System: Semi-automatic with short-stroke gas piston, rotating breech, adjustable gas port
Barrel: Lothar Walther, rifled barrel with button
Barrel thread: .223 Rem: 1/2- 28 UNEF / .308Win: 5/8-24 UNEF
Trigger mechanism: KAR, two-stage, (not AR-compatible)
Magazine: Uses AR15 and AR10 magazines (Magpul P -mag). Comes with a 5- or 10-round magazine Mounting options: Stanag 4694 full-length picatinny rail M-lok standard on the sides and under the weapon. QD sling and HK hook mounts
Usage: Ambidextrous safety and magazine release. The side of the charging handle can be changed under a field strip. The charging handle does not move when fired. Robust bolt catch that hooks up when the magazine is empty. Caliber change: The change is made with only four parts; barrel, bolt, magazine well and magazine
Color: Black