The B model has been criticized by some users for the light construction of its barrel, which is said to be too light for sustained firing.
ðə bˈiː mˈɑːdəl hˈæzbiːn kɹˈɪɾɪsˌaɪzd baɪ sˌʌm jˈuːzɚz fɚðə lˈaɪt kənstɹˈʌkʃən ʌv ɪts bˈæɹəl, wˌɪtʃ ɪz sˈɛd təbi tˈuː lˈaɪt fɔːɹ səstˈeɪnd fˈaɪɚɹɪŋ.