Magazine

Parts

Price

STI Magazine

The factory STI magazine is built using all STI parts.

STI Tube
STI Spring
STI Follower
STI Comp Basepad

40 S&W/140mm = $60
38 Super/140mm = $60
38 Super/170mm = $100

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Brazos Super Tuned Magazine

Truly superior, the Brazos Super Tuned magazine uses premium Grams parts, and it has been tuned for reliability and maximum capacity. 

• Tube dimensions (inside and out) are set for maximum feeding efficiency.

• Lips of the tube are set to optimum specifications.

• All sharp edges are rolled.

• The tube is polished both inside and out to a high gloss, slick finish.

• Magazines are tuned to fit the U.S.P.S.A. gauge and will hold 20+1 rounds of 40 cal or 21+1 of 38 super in 140mm magazines and 28+1 of 38 super in 170mm magazines.

STI Tube
Grams Spring/Follower
Grams or Dawson Basepad

40 S&W/140mm = $125*
38 Super/140mm = $125*
38 Super/170mm = $160*

*Add $5.00 for a Grams basepad

Click here to buy.

Note:  While most tuned 170mm magazines will hold 29 rounds, we recommend  using no more than 28 rounds.  We have found that using magazines with 29 rounds can crack grips.