US 9,810,499 B1
Safety round
H. Steven Silver, Knoxville, TN (US)
Assigned to Safe Tech, Inc., Knoxville, TN (US)
Filed by Safe Tech, Inc., Knoxville, TN (US)
Filed on Sep. 22, 2016, as Appl. No. 15/273,189.
Claims priority of provisional application 62/383,063, filed on Sep. 2, 2016.
Int. Cl. F41A 17/44 (2006.01); F41A 15/14 (2006.01)
CPC F41A 17/44 (2013.01) [F41A 15/14 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A firearm safety round configured to function as a safety round for firearms of the group comprising the following firearms: SAR 21—Singapore Assault Rifle-21st Century and M-16 rifle, wherein such firearms include a firing chamber adjacent a bore, and an extractor for engaging and ejecting the safety round from the firearm via an ejection port of the firearm by cycling a bolt of the firearm associated with the extractor, with the ejector ports of the firearms varying in size, the safety round comprising:
a cylindrical rear end having a rim;
a mid-section adjacent the rear end opposite the rim, the mid-section comprises a truncated cylinder having a length and opposite flat sides extending the length of the truncated cylinder, the spacing between the flat sides being selected to position the rim to be fully engagable by the extractor, and the flat sides configure the mid-section so that a largest dimension of the mid-section between the flat sides is smaller than a height of the extraction port of the firearm of the group of the firearms that has the smallest sized ejection port of the group;
a tab extending outwardly from the mid-section contiguous with the flat sides and configured so that when the safety round is received by the firing chamber, the tab will extend out of the firing chamber to visually indicate that the firing chamber of the firearm is free of live ammunition; and
a cylindrical nose portion extending from the mid-section, opposite from the rear end and longitudinally aligned therewith;
wherein when the safety round is installed in the firing chamber of the firearm, one of the flat sides positions the rim of the safety round in alignment with the extractor so that the rim is positioned to be fully engagable by the extractor so that the safety round is ejectable from the firing chamber by cycling the bolt, and the flat sides configure the mid-section so that a largest dimension of the mid-section between the flat sides is smaller than a height of the extraction port of the firearm of the group of the firearms that has the smallest sized ejection port of the group so that the safety round may be used with all of the firearms despite the firearms having ejection ports of varying size and not hang up during ejection from the firing chamber by cycling the bolt.