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Stern Defense

Stern Defense Rifle Parts
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Stern Defense Products

🔫 Transform your AR-15 into a 9mm powerhouse with the Stern Defense Adapter! Use Glock® mags seamlessly. Easy install, durable & ready for action. Learn more! ✨
STERN DEFENSE AR-15 9MM CONVERSION ADAPTER FOR GLOCK® MAGAZINES
AR-15 9MM CONVERSION ADAPTER
STERN DEFENSE
In stock
£259.90 * £259.90 - £274.90*
Caliber Conversion Kits
4.7
🎯 Upgrade your AR-15 with Stern Defense H2S Hybrid Trigger! Drop-in 2-stage design for precision & reliability. 🛠️ Easy install, duty spring, 250K rounds tested. Learn more! 🔫
STERN DEFENSE H2S HYBRID TRIGGER DROP-IN 2 STAGE
AR-15 H2S HYBRID TRIGGERS DROP-IN 2-Stage
STERN DEFENSE
In stock
£219.90 * £219.90 - £264.90*
Triggers
0
🔩 Keep your SD BU9 in top shape with the STERN DEFENSE 9MM BOLT REPLACEMENT KIT! Includes custom extractor & springs for superior ejection. Learn more! 🔫
STERN DEFENSE 9MM BOLT REPLACEMENT KIT
9MM BOLT REPLACEMENT KIT
STERN DEFENSE
In stock - Is a 'Call to order' product.
£54.90 *
Bolt Carrier Hardware
0
🔫 Upgrade your AR-15 with Stern Defense's 9mm Bolt! Compatible with Glock & Colt mags, this bolt is perfect for semi-auto PCCs. Learn more & shop now! 🔧
STERN DEFENSE 9MM COMPLETE BOLT BLACK SEMI AUTO ONLY
AR-15 9MM BOLT FOR GLOCK AND COLT
STERN DEFENSE
In stock - Is a 'Call to order' product.
£189.90 *
Bolt Carrier Groups
0
Upgrade your AR-15 with the Stern Defense .45ACP Conversion Adapter! 🔥 Compatible with S&W M&P magazines. Easy install, last-round hold-open feature. Get started now! ✨
STERN DEFENSE AR-15 CONVERSION ADAPTER FOR S&W .45ACP MAGAZINES
AR-15 M&P 45ACP CONVERSION ADAPTER
STERN DEFENSE
In stock
£274.90 *
Caliber Conversion Kits
0
🔫 Keep your firearm in top condition with the OEM Stern Defense Mag-AD Ejector Replacement Kit! 🛠️ Made from durable 1050 spring steel. Shop now and stay prepared! ✨
STERN DEFENSE MAG-AD EJECTOR REPLACEMENT KIT
MAG-AD EJECTOR REPLACEMENT KIT
STERN DEFENSE
In stock
£21.90 *
0
🔫 Upgrade your AR-15 with the Stern Defense MAG-AD Flare Mod1 Magwell for swift magazine changes. 🇺🇸 Made in USA from durable Black Delrin. Get started now!
STERN DEFENSE MAG-AD FLARE MOD1 MAGWELL 9MM BLACK
AR-15 9MM MAG-AD FLARED MAGWELL
STERN DEFENSE
In stock
£109.90 *
0
Upgrade your AR-15 with the Stern Defense 9mm Bolt 🌟 Compatible with Glock & Colt SMG mags. Enjoy a seamless build with a Mag-Phosphate finish. Shop now!
STERN DEFENSE 9MM COMPLETE BOLT MAG-PHOSPHATE
M16 9MM BOLT FOR GLOCK AND COLT
STERN DEFENSE
Not available - Is a 'Call to order' product.
£226.85 * £226.85 - £293.75*
Bolt Carrier Groups
0
🔫 Upgrade your AR-15 with the Stern Defense SD Mod 4 9mm Upper Receiver! Complete assembly, 16.1in M-LOK handguard, ready to shoot. Get started now! 🎯
STERN DEFENSE SD MOD 4 9MM UPPER RECEIVER 16.1IN M-LOK COMPLETE BLACK
AR-15 SD MOD 4 9MM UPPER RECEIVER M-LOK COMPLETE
STERN DEFENSE
Not available - Is a 'Call to order' product.
£933.65 *
Upper Receivers
0
🔫 Upgrade your AR-15 with Stern Defense's SD Mod 5 9mm Upper Receiver! 6" & 8.5" barrels, M-LOK handguard, and more. Made in the USA. Shop now! 🇺🇸
STERN DEFENSE SD MOD 5 9MM UPPER RECEIVER 6IN M-LOK COMPLETE BLACK
AR-15 SD MOD 5 9MM UPPER RECEIVERS M-LOK COMPLETE
STERN DEFENSE
Not available - Is a 'Call to order' product.
£801.75 * £801.75 - £826.85*
Upper Receivers
0
🎯 Upgrade your AR-15 with Stern Defense's SD Mod 4 9mm Upper Receiver! Complete with M-LOK handguard & blast can. 🛒 Get shooting-ready with a click!
STERN DEFENSE SD MOD 4 9MM UPPER RECEIVER 4IN M-LOK COMPLETE BLACK
AR-15 SD MOD 4 9MM UPPER RECEIVER 4IN M-LOK COMPLETE
STERN DEFENSE
Not available - Is a 'Call to order' product.
£725.00 *
Upper Receivers
0
Upgrade your AR-15 with the GEN 2 Bolt Carrier 🛠️ Compatible with Glock® & Colt .40S&W. High-quality steel, ready-to-install. Shop now & enhance your firearm! 🔫
STERN DEFENSE AR-15 GEN 2 BOLT CARRIER FOR GLOCK® & COLT .40S&W
AR-15 GEN 2 BOLT CARRIER FOR GLOCK® & COLT .40S&W
STERN DEFENSE
Not available - Is a 'Call to order' product.
£237.65 *
Bolt Carrier Groups
0
🔧 Upgrade your AR-15 with the STERN DEFENSE SD-BU45 Bolt Carrier in .45ACP! Reliable & durable, perfect for PCCs. 🛒 Shop now & enhance your shooting experience!
STERN DEFENSE AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK
AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK
STERN DEFENSE
Not available - Is a 'Call to order' product.
£243.00 *
Bolt Carrier Groups
0
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