I don’t believe they were shipped with extensions for any model in black. I don’t know this company, but they offer them with the extensions installed. LC Action Police Supply | Glock OEM 9mm Magazine 17 + 2 Rds FOR GLOCK 17,19,26, 45 & 47
7151 * | Magazine Floor Plate - "+" for 9mm, .40, .357, .45 GAP use ONLY with 7165 insert (Excludes 10rd mags, except G26 & G37) G17,G17L,G19,G19X,G22,G23,G24,G25,G26,G27,G31,G32,G33,G34,G35,G37,G38,G39,G45 (Including "C" models, Gen4,Gen5) (Excludes G42,G43,G44) - As of 1/1/16 sale of this part to CA was restricted - See page 7 | $5.00 |
7165 * | Magazine Insert - "+" for 9mm, .40, .357, .45 GAP use ONLY with 7151 floorplate (Excludes 10rd mags, except G26 & G37) G17,G17L,G19,G19X,G22,G23,G24,G25,G26,G27,G31,G32,G33,G34,G35,G37,G38,G39,G45, (Including "C" models, Gen4,Gen5) (Excludes G42,G43,G44) - As of 1/1/16 sale of this part to CA was restricted - See page 7 | $2.00 |
33601 | Magazine Spring - 9mm G17,G18,G19X,G34 19rd mags only (17rd mag with 7151 Floorplates & 7165 insert) 11 Coil Spring | $4.00 |