M10-14 4 inch heavy barrel and my old school M&P pre-10 4 inch
สมมุติว่าเป็น โมเดล 10 .38สเปฯ แบบ 4 นิ้ว ลำกล้องหนา
ปืน โมเดล 10-13 เจ้าปัญหาของ จขกท. คาดว่าก็จะมีคุณสมบัติตามด้านล่างครับ
1957: Begin stamping model number.
10-1 (1959): introduction of heavy barrel (the frame is slightly different for the heavy barrel, and changes to the standard-barrel variant were generally carried over to the heavy-barrel variant, thus the engineering changes happen in pairs)
10-2 (1961): change extractor rod thread for standard barrel
10-3 (1961): change extractor rod thread for heavy barrel, change front sight width from 1/10" to 1/8"
10-4 (1962): eliminate trigger-guard screw on standard barrel frame
10-5 (1962): change sight width from 1/10" to 1/8" for standard barrel
10-6 (1962): eliminate trigger-guard screw on heavy-barrel frame
10-7 (1977): change gas ring from yoke to cylinder for standard barrel
10-8 (1977): change gas ring from yoke to cylinder for heavy barrel
10-9 (1988): new yoke retention system, radius stud package, floating hand hammer nose bushing for standard barrel
10-10 (1988): new yoke retention system, radius stud package, floating hand hammer nose bushing for heavy barrel
10-11 (1997): MIM hammer/trigger + floating firing pin for standard barrel
10-12 (1997): MIM hammer/trigger + floating firing pin for heavy barrel
10-13 (2002): limited production 1899 commemorative edition10-14 (2002): internal lock
