We (The Old Guard) were there 1975.We carried the 2nd Model Brown Bess muskets with bayonets,in Revolutionary War uniforms.Did a lot of live firing at the range at Quantico ,Va. Did firing, reloading and bayonet charge drill. We didn't fire bullets at Williamsburg. Just blanks. I was in the Commander in Chiefs Guard,Company A,1st Battalion,3rd Infantry Regiment,The Old Guard,Fort McNair, Washington DC 1974-1975 We didn't carry M16s,we carried M14s for ceremonies Like at Arlington National Cemetery and parades and such in Blues.I never did see an M16 the whole time I was there! Marched at the 200th anniversary at Lexington and Concord,the 200th anniversary of the taking of Fort Ticonderoga. We marched a few times at the White House in Revolutionary War Uniforms.Then there was Philadelphia,that sucked.I think it was Barbra Walters gave a 45 minute speech at the Official Opening of the Bicentennial. Man,those white wigs and wool uniforms were hot! The warmest job was marching 4 miles in Boston in 90 deg+ heat. I cant remember all the places we marched in those uniforms. There were a lot of 200th anniversary's to celebrate back then. We marched up and down the East Coast. But,we(me and my buddies)had lots of fun in the US Army. Note: This unit was a reenactment of General George Washington's Body Guard. Huzaaaaa!!!!