Assertion: short barreled rifle | /r/HasProperty | sbr
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Source sentences:
text: The 14.5 inch barrel makes the M4 a Short Barrel Rifle (SBR) and select fire capability (semi-automatic and fully automatic or burst-automatic) makes the M4 a machine gun.
text: In order to be legal for purchase by civilians without obtaining a tax stamp for a Short Barreled Rifle (SBR) as defined by the United States National Firearms Act, the PS90 carbine has an extended 407 mm (16 in) barrel and is semi-automatic, with a trigger pull of approximately 31–36 newtons (7.0–8.1 lb f ).