The bolt carrier group (BCG) is the heart of the Steyr AUG operating system. it houses the rotating bolt, firing pin, and extractor, and travels back and forth during the firing cycle to chamber, fire, extract, and eject rounds. This is original Steyr factory production. genuine military surplus from the legendary Austrian bullpup that served over 30 military forces worldwide.
The AUG uses a short-stroke gas piston system where the BCG is driven rearward by a gas piston, then returned forward by dual recoil springs. The bolt rotates to lock into the barrel extension, providing a strong and reliable lockup. The AUG’s BCG design is compact, reliable, and easy to maintain. key features that made the AUG one of the most successful bullpup rifles in history. These are takeoff parts from military arsenals. combat-proven components with decades of field testing.
Condition
Military surplus with typical service wear. Fully functional. May show carbon buildup, finish wear, or handling marks from service use. Bolt face and locking lugs show normal wear. Extractor functions properly. Firing pin included but inspect before use. These are genuine used military parts.
Specifications
- Platform: Steyr AUG
- Manufacturer: Steyr (Austria)
- Material: Steel
- Finish: Phosphate or manganese phosphate (may vary)
- Caliber: 5.56x45mm NATO
- Origin: Military surplus
- Compatibility: AUG A1/A2/A3 pattern rifles
Compatibility
Fits Steyr AUG A1, A2, and A3 rifles chambered in 5.56x45mm NATO. Standard OEM dimension. Requires recoil springs and guide rods for complete function.
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