56 F.3d 1329
UNITED STATES of America, Plaintiff-Appellee,v.Donald JUSTICE, Defendant-Appellant.
No. 94-4549
Non-Argument Calendar.United States Court of Appeals,Eleventh Circuit.
June 30, 1995.

Stewart G. Abrams, Asst. Federal Public Defender, Miami, FL, for appellant.
Lewis P. Carey, Jr., Monique V. Perez, Linda C. Hertz, Harriett R. Galvin, Asst. U.S. Attys., Miami, FL, for appellee.
Appeal from the United States District Court for the Southern District of Florida.
Before TJOFLAT, Chief Judge, and HATCHETT and CARNES, Circuit Judges.
PER CURIAM:


1
Having been convicted on a guilty plea to one count of possession of unregistered firearms, Donald Justice appeals his sentence, which resulted from an application of Secs. 2K2.1(a)(5) and 2K2.1(b)(3) of the United States Sentencing Guidelines.  Pursuant to Sec. 2K2.1(a)(5), Justice initially was assigned a base offense level of 18, because his "offense involved a firearm listed in 26 U.S.C. Sec. 5845(a);"  more specifically, his offense involved grenades which are destructive devices, one of the several types of firearms listed in Sec. 5845(a).  See U.S.S.G. Sec. 2K2.1(a)(5) & comment.  (n. 5);  26 U.S.C. Sec. 5845.  Because grenades also fall into the special firearms category of "destructive devices," pursuant to Sec. 2K2.1(b)(3) Justice's base offense level was enhanced another two points, resulting in a base offense level of 20.  Justice contends that the combined application of Secs. 2K2.1(a)(5) and 2K2.1(b)(3) constitutes impermissible double counting of his offense conduct.  We disagree.


2
The commentary accompanying Sec. 2K2.1 directs a sentencing judge to apply both subsections (a)(5) and (b)(3) when calculating the sentence of a defendant whose offense involved a destructive device.  Application Note 11 explains:


3
A defendant whose offense involves a destructive device receives both the base offense level from the subsection applicable to a firearm listed in 26 U.S.C. Sec. 5845(a) (e.g., subsection ... (a)(3) ...), and a two-level enhancement under subsection (b)(3).  Such devices pose a considerably greater risk to the public welfare than other National Firearms Act weapons.


4
U.S.S.G. Sec. 2K2.1, comment.  (n. 11).  The "commentary in the Guidelines Manual that interprets or explains a guideline is authoritative unless it violates the Constitution or a federal statute, or is inconsistent with, or a plainly erroneous reading of, that guideline."  Stinson v. United States, --- U.S. ----, ----, 113 S.Ct. 1913, 1915, 123 L.Ed.2d 598 (1993) (emphasis added).  Justice does not argue that Note 11 violates the Constitution or a federal statute.  Nor does he contest the fact that Note 11 clearly comports with the plain language of Sec. 2K2.1.  Instead, he contends that Note 11 conflicts with other guidelines and their commentary which restrict double counting.  Thus, Justice fails to address what is the critical question under Stinson:  whether a guideline's commentary contradicts that guideline.  Having conducted our own review of the relevant guideline and commentary, we conclude that Note 11 is not " 'plainly erroneous or inconsistent with' " Sec. 2K2.1.  Accordingly, the application note controls our determination of this case, see Stinson, --- U.S. at ----, 113 S.Ct. at 1920, and we reject Justice's contention.


5
AFFIRMED.

