Pursuant to a plea agreement with the Government, appellant pled guilty to possession of two firearms after having been convicted of a felony, in violation of 18 U.S.C. § 922(g), 1 and the district court sentenced him to a prison term of 168 months. 2 In this appeal, appellant challenges his sentence on the following grounds:

1) Blakely v. Washington, 542 U.S. 296, 124 S.Ct. 2531,159 L.Ed.2d 403 (2004), and United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), effectively overturned Almendarez-Torres v. United States, 523 U.S. 224, 118 S.Ct. 1219, 140 L.Ed.2d 350 (1998), and thereby rendered his sentence unconstitutional;

2) The felon-in-possession statute, 18 U.S.C. § 922(g), is facially invalid; and

3) The district court erred in enhancing his offense level under U.S.S.G. § 2K2.1(b)(5).

Appellant’s first challenge is foreclosed by our decision in United States v. Greer, 440 F.3d 1267,1273 (11th Cir. 2006).

Appellant’s second challenge is foreclosed by several of our decisions, including United States v. Scott, 263 F.3d 1270, 1272 (11th Cir. 2001).

We do not consider appellant’s third challenge because, under the plea agreement he executed and as the district court found, appellant knowingly and voluntarily waived his right to appeal the district court’s application of the Guidelines.

AFFIRMED.