Assertion: rifle's stock | /r/CapableOf | allow the bullpup conversion
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Source sentences:
text: During the development of the SA80, a bullpup conversion was made of an AR-18 and a Stoner 63 at Enfield due to the fact they could be used with stocks folded/without stocks which allowed the bullpup conversion and were later chambered in the experimental 4.85x49mm round.