Air Arms Air Arms tactical chassis incompatibility with pre-2007 guns.

Just received an AA tactical chassis.

Nowhere have I seen it posted that it is not compatible with pre-2007 guns. Unless an additional trigger kit is utilized.

The only place I can find the kit is the manufacturer's UK Air Arms site.

Listed as Special order.

£100 price!

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I know nothing so take that into account. The illustrations, for what they’re worth, do not show a visible difference in size or shape of assembled trigger housings. From that and acknowledging my first sentence, I cannot imagine fitting stock would be terribly difficult to accomplish.

I assume you tried to fit. Are the areas/points of interference such that they could be relieved/modified to make stock fit?