Assertion: gas blowback | /r/HasProperty | gbb
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Source sentences:
text: At AirsoftCore we’ll help you find the Best Airsoft Pistol in 2020, taking a look at CO2, Gas Blowback (GBB) and Spring action guns ready for a skirmish.
text: Airsoft in the past was used almost solely for recreational purposes, but in 2012, gas blowback (GBB) airsoft technology became adopted by US federal and state institutions as an affordable and reliable tactical training tool for close quarters battles.
text: INTERNAL WORKINGS OF A GAS BLOWBACK (GBB) AIRSOFT PISTOL