ms ▁imported ▁into ▁the ▁U . S . ▁after ▁January ▁ 3 0 , ▁ 2 0 0 2 , ▁are ▁required ▁by ▁federal ▁law ▁to ▁have ▁the ▁name ▁of ▁the ▁im porter ▁consp ic u ously ▁stamp ed ▁on ▁the ▁bar rel , ▁slide , ▁or ▁receiver ▁of ▁each ▁weapon . ▁This ▁requirement ▁significantly ▁low ers ▁a ▁military ▁weapon ' s ▁value ▁relative ▁to ▁those ▁without ▁the ▁import ation ▁mark ings ▁as ▁they ▁dist ract ▁from ▁its ▁original ▁state . ▁ ▁Military ▁sur plus ▁Gar ands ▁and ▁post - war ▁copies ▁made ▁for ▁the ▁civil ian ▁market ▁are ▁popular ▁among ▁enthus iast s ▁around ▁the ▁world . ▁In ▁ 2 0 1 5 , ▁John ▁F . ▁Kennedy ' s ▁personal ▁M 1 ▁Gar and ▁was ▁au ction ed ▁by ▁Rock ▁Island ▁Au ction ▁Company ▁and ▁sold ▁for ▁$ 1 4 9 , 5 0 0 . ▁This ▁rif le ▁was ▁acquired ▁by ▁Kennedy ▁in ▁ 1 9 5 9 ▁from ▁the ▁Director ▁of ▁Civil ian ▁Mark sm ans hip ▁and ▁has ▁the ▁serial ▁number ▁ 6 0 8 6 9 7 0 . ▁ ▁Users ▁▁▁▁▁▁ ▁: ▁Rece ived ▁about ▁ 3 0 , 0 0 0 ▁M 1 s ▁from ▁the ▁U . S . ▁government ▁before ▁ 1 9 6 4 . ▁Some ▁were ▁converted ▁to ▁accept ▁Ber etta ▁B M   5 9 ▁mag az ines ▁in ▁the ▁ 1 9 6 0 s . ▁ ▁: ▁U sed ▁as ▁a ▁cer emon ial ▁rif le ▁by ▁the