Geco 9mm Armor Piercing Ammo for Sale
(7)
Geco 124 gr Full Metal Jacket Round Nose 9mm Ammo, 50/box - 210040050
Brand:
Geco
Bullet Type:
Full Metal Jacket (FMJ)
Caliber:
9×19mm Parabellum
Grains:
124 grain
Rounds:
50
(2)
Geco Red Zone 124 gr Jacketed Hollow Point 9mm Ammo, 20/box - 293240020
Brand:
Geco
Bullet Type:
Jacketed Hollow Point
Caliber:
9×19mm Parabellum
Grains:
124 grain
Rounds:
20
(0)
GECO Pistol 9mm 115gr, FMJ, 50rd Box
Brand:
Geco
Bullet Type:
Full Metal Jacket
Caliber:
9×19mm Parabellum
Grains:
115 grain
Rounds:
50
(0)
Geco 9mm 115gr FMJ 50rd Ammo Box - 220440050
Brand:
Geco
Bullet Type:
Full Metal Jacket
Caliber:
9×19mm Parabellum
Grains:
115 grain
Rounds:
115
(0)
Geco 124 gr Full Metal Jacket 9mm Ammo, 50/box - 220340050
Brand:
Geco
Bullet Type:
Full Metal Jacket
Caliber:
9×19mm Parabellum
Grains:
124 grain
Rounds:
50
Marketplace Insights
★ 4.2/5
based on 9 customer reviews across 6 variants from 12 retailers
Mostly reliable ammo with excellent range performance, though some users report reliability issues with subcompact barrels and occasional primer defects.
What customers like
Reliable performance67%
They worked perfectly. Recently purchased a S&M MP 9mm and went to the range today.
Clean shooting33%
Full expansion of the hollow point and very clean.
Compact pistol suitability22%
The best ammo for compact pistols.
Common concerns
Poor expansion subcompact11%
Does not expand out of a 3.1 inch barrel
Jamming issues11%
Kept getting jammed in my Glock 17.
Primer defects11%
had 5 failure to fire with bad primers
Frequently Asked Questions
Geco 9mm Armor Piercing Ammo for Sale
Is Geco 9mm ammo good?
Geco 9mm is well-regarded for reliability and consistent performance in training and competition. It burns relatively clean and delivers good accuracy. Priced around $13 per box, it offers solid value. Six variants are available from multiple retailers, though stock can be limited.
What does geco stand for?
GECO stands for Gustave Genschow Co., a German ammunition manufacturer founded in the late 19th century. It produces cartridges for hunting, sport shooting, and competition across multiple calibers, including 9mm Luger, and is known for consistent quality and reliability.
How much is geco 9mm ammo?
GECO 9mm typically costs around $16.55–$17.99 per box of 50 rounds, with bulk options available at around $0.35 per round. Six variants are available across twelve retailers, though stock varies and prices differ by seller and load.
What is the shelf life of 9mm ammo?
Properly stored 9mm ammunition lasts 20 to 50 years or longer, with some sources citing an essentially unlimited shelf life under ideal conditions. Storage conditions matter most—keep rounds cool, dry, and away from moisture and extreme temperatures. Quality ammunition stored correctly remains reliable for decades.
What is better, 124-grain or 147 grain 9mm?
Neither is universally better—it depends on your use case. 124-grain runs at higher velocity with moderate recoil, making it a common duty and range choice. 147-grain is heavier and subsonic, favored for suppressed shooting. Test both in your specific firearm to confirm reliable feeding and cycling.