Obsidian Arms Sig P320 21rd Magazine Extended Basepad in Black

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Your Price: $36.49
Retail Price:$38.00
You Save:$1.51(4%)
Obsidian Arms Sig Sauer P320 21 Round Magazine Base Pad Extension. Machined from aircraft grade 6061 aluminum and military grade hard coat anodized in Black. Upgrade your current factory polymer base pad with this aluminum base pad to add a little extra weight to allow your mags to drop easier and also add 1 extra round when using 9mm or .40S&W. This basepad will fit any Sig Sauer factory grip module but will only fit onto the 21 round 9mm or 18 round 40 S&W magazines. This upgraded base pad also fits in the 140mm gauge for competition shooting and includes a unique retainer plate. All together, this base pad will allow you to conduct tactical reloads and easily drop the mag without worry of it breaking when hitting the ground.
Part Number: OABAEB-BLK
Availability: In Stock.
Obsidian Arms Sig Sauer P320 21 Round Magazine Base Pad Extension. Machined from aircraft grade 6061 aluminum and military grade hard coat anodized in Black. Upgrade your current factory polymer base pad with this aluminum base pad to add a little extra weight to allow your mags to drop easier and also add 1 extra round when using 9mm or .40S&W. This basepad will fit any Sig Sauer factory grip module but will only fit onto the 21 round 9mm or 18 round 40 S&W magazines. This upgraded base pad also fits in the 140mm gauge for competition shooting and includes a unique retainer plate. All together, this base pad will allow you to conduct tactical reloads and easily drop the mag without worry of it breaking when hitting the ground.

Obsidian Arms Sig Sauer P320 21 Round Magazine Base Pad Extension in Black Features:


  • Machined from 6061 Aluminum
  • Hard coat anodized black - Military grade coating
  • Adds weight to assist in dropping magazine
  • Tolerates repeated dropping of the magazine
  • Includes unique retainer plate
  • Fits the 140mm gauge for competition shooting
  • Works with the factory spring and follower
  • Does not work with 17 round or smaller magazines
  • Compatible with all Sig Sauer P320 models - Including the X-Series
  • Compatible with all the Sig Sauer P320 grip modules, including the X-Series grip mods
  • Compatible with the following calibers:
    • 9mm Luger
    • .40 S&W
  • Adds 1 extra round to 9mm and .40S&W
     Made in the USA