He's been vaccinated multiple times....

Based on this understanding, the removal of a gun's firing pin is not so significant an alteration as to exclude the gun from the definition of firearm.   See Reed, 114 F.3d at 1056, 1057 (upholding firearms conviction where defense witness testified that gun was workable after fifteen to twenty minutes of manipulation);  cf.  United States v. Drasen, 845 F.2d 731, 736 (7th Cir.1988) (“In adding the ‘readily restored’ clause to [the definition of rifle in 26 U.S.C. § 5845(c) ], Congress specifically intended to overcome United States v. Thompson, 202 F.Supp. 503 (N.D.Cal.1962), holding that a firearm with a missing firing pin was not a firearm under the [National Firearms] Act.”).   Brown suggests that the “readily” in “readily ․ converted” should be read to require that a defendant possess the means to convert the weapon to an operable state in the course of the offense.   Yet the commentary to section 1B1.1 contains no such requirement, and we are not inclined, absent some compelling reason, to read one into its definition.   See Yannott, 42 F.3d at 1007 (“[I]t is irrelevant that defendant may not have known how to alter the weapon to render it operable.”);   see also United States v. Maddix, 96 F.3d 311, 316 (8th Cir.1996) (noting that ATF agent testified revolver was firearm under § 921(a)(3) “whether or not certain tools were required to load it”).   Moreover, we are conscious of the fact that we do not write on a clean slate.   In 1991, the Sentencing Commission amended the definition here under consideration “to track more closely the definition of firearm in 18 U.S.C. § 921.”  U.S.S.G.App. C, amend. 388.   For some time now, section 921(a)(3)'s “readily ․ converted” prong has been subject to a rather expansive judicial construction.   See United States v. 16,179 Molso Italian .22 Caliber Winlee Derringer Convertible Starter Guns,

The law says they are. Once again common sense.