Description
The Tandemkross Essential Maintenance Kit is a buffer system component.
The buffer and spring absorb the bolt carrier at the back of its travel and drive it forward again. Together they set how the rifle cycles.
Buffer weight is a tuning part: a heavier buffer slows the carrier, which is how an over-gassed rifle – a suppressed one, commonly – is brought back into balance. Too heavy and the rifle short-strokes instead.
Buffer and tube have to match. Carbine, rifle and A5 lengths are different, and the wrong combination will not assemble or will not cycle.
This is a part or accessory, not a firearm, and ships directly to your address.
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