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Ammunition Depot Updated Nov 08, 2026

Stern Defense Stern Defense(R) - 001SDMAGADMP45ACPM - MAG-AD AR-15 .45 ACP Aluminum Magazine Adapter - $186.99 at Ammunition Depot

Stern Defense (R) - 001SDMAGADMP45ACPM - MAG-AD AR-15 .45 ACP Aluminum Magazine Adapter

$186.99

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Ammunition Depot Updated Nov 08, 2026

Stern Defense AR-15 9mm Complete Bolt Assembly - Black Semi-Auto Glock/Colt Compatible - $132.49 at Ammunition Depot

Stern Defense AR-15 9mm Complete Bolt Assembly - Black Semi-Auto Glock/Colt Compatible

$132.49

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Ammunition Depot Updated Nov 08, 2026

Stern Defense Stern Defense H2S Hybrid Trigger for AR10/AR15 - $167.00 at Ammunition Depot

Stern Defense H2S Hybrid Trigger for AR10/AR15

$167.00

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Ammunition Depot Updated Nov 08, 2026

Stern Defense Stern Defense AR-15 Conversion Adapter for S&W .45ACP Magazines - $187.99 at Ammunition Depot

Stern Defense AR-15 Conversion Adapter for S&W .45ACP Magazines

$187.99

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Shooting Surplus Updated Nov 08, 2026

Stern Defense Stern Defense 9mm BU9 NIB AR-15 Bolt Nickle-Boron Finish - $178.94 at Shooting Surplus

Stern Defense 9mm BU9 NIB AR-15 Bolt Nickle-Boron Finish

$178.94

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 SD 4 MOD4 Complete Upper Receiver 9mm Luger 4" M-LOK - $443.48 at MidwayUSA

Stern Defense AR-15 SD 4 MOD4 Complete Upper Receiver 9mm Luger 4" M-LOK

$443.48

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 Magwell Adapter for 45ACP S&W M&P Magazines - $186.99 at MidwayUSA

Stern Defense AR-15 Magwell Adapter for 45ACP S&W M&P Magazines

$186.99

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 SD 10 MOD5 Complete Upper Receiver 9mm Luger 8.5" M-LOK - $498.56 at MidwayUSA

Stern Defense AR-15 SD 10 MOD5 Complete Upper Receiver 9mm Luger 8.5" M-LOK

$498.56

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 SD 15 MOD5 Complete Upper Receiver 45ACP 16.1" M-LOK - $624.12 at MidwayUSA

Stern Defense AR-15 SD 15 MOD5 Complete Upper Receiver 45ACP 16.1" M-LOK

$624.12

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 Magwell Flare for Magwell Adapters Black - $73.00 at MidwayUSA

Stern Defense AR-15 Magwell Flare for Magwell Adapters Black

$73.00

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 Magwell Adapter for Glock 9mm Magazines Black - $179.99 at MidwayUSA

Stern Defense AR-15 Magwell Adapter for Glock 9mm Magazines Black

$179.99

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 Magwell Adapter for S&W M&P, Sig P320 9mm Magazines Black - $186.99 at MidwayUSA

Stern Defense AR-15 Magwell Adapter for S&W M&P, Sig P320 9mm Magazines Black

$186.99

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MidwayUSA Updated Nov 01, 2026

Stern Defense Stern Defense AR-15 Magwell Adapter for Beretta 92 9mm Magazines Black - $186.99 at MidwayUSA

Stern Defense AR-15 Magwell Adapter for Beretta 92 9mm Magazines Black

$186.99

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Shooting Surplus Updated Nov 08, 2026

Stern Defense AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK - $144.48 at Shooting Surplus

Stern Defense AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK

$144.48

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Optics Planet Updated Oct 31, 2026

29% OFF

Stern Defense Stern Defense MAG-ADMP9&40/P320 AR-15/M4/M16 Magazine Conversion Adapter M&P 9mm/.40S&W Black 001-SD MAG-AD-9AND40-M - $186.99 at Optics Planet

Stern Defense MAG-ADMP9&40/P320 AR-15/M4/M16 Magazine Conversion Adapter M&P 9mm/.40S&W Black 001-SD MAG-AD-9AND40-M

$186.99 $263.00

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Optics Planet Updated Oct 31, 2026

8% OFF

Stern Defense Stern Defense SD .40SW AR-15 Barrel 4in .578-28 TPI 1-16 Twist Rate Black BR4IN-D1-M - $109.99 at Optics Planet

Stern Defense SD .40SW AR-15 Barrel 4in .578-28 TPI 1-16 Twist Rate Black BR4IN-D1-M

$109.99 $119.99

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Optics Planet Updated Oct 31, 2026

23% OFF

Stern Defense Stern Defense SD .40SW AR-15 Barrel 8.5in .578-28 TPI 1-16 Twist Rate Black BR8.5IN-D1-M - $129.99 at Optics Planet

Stern Defense SD .40SW AR-15 Barrel 8.5in .578-28 TPI 1-16 Twist Rate Black BR8.5IN-D1-M

$129.99 $167.99

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Optics Planet Updated Oct 31, 2026

2% OFF

Stern Defense Stern Defense AR-15 Upper Receiver 9mm 6in Barrel 8in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD8INCHMOD5-KK - $460.45 at Optics Planet

Stern Defense AR-15 Upper Receiver 9mm 6in Barrel 8in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD8INCHMOD5-KK

$460.45 $470.45

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Optics Planet Updated Oct 31, 2026

2% OFF

Stern Defense Stern Defense AR-15 10in Upper Receiver 8.5in 9mm Barrel MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD10INCHMOD5-KK - $476.45 at Optics Planet

Stern Defense AR-15 10in Upper Receiver 8.5in 9mm Barrel MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD10INCHMOD5-KK

$476.45 $486.45

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Optics Planet Updated Oct 31, 2026

2% OFF

Stern Defense Stern Defense AR-15 Upper Receiver 9mm 16.1in Barrel 15in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SCB 9 Comp Break Black 015-SD15INCHMOD4-KK - $534.45 at Optics Planet

Stern Defense AR-15 Upper Receiver 9mm 16.1in Barrel 15in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SCB 9 Comp Break Black 015-SD15INCHMOD4-KK

$534.45 $544.45

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Optics Planet Updated Oct 31, 2026

2% OFF

Stern Defense Stern Defense AR-15 Upper Receiver .45 ACP 16.1in Barrel 15in MLOK Rail SD BU45 Bolt SD CH1 Charging Handle SD CB45 Comp Break Black - $593.11 at Optics Planet

Stern Defense AR-15 Upper Receiver .45 ACP 16.1in Barrel 15in MLOK Rail SD BU45 Bolt SD CH1 Charging Handle SD CB45 Comp Break Black

$593.11 $603.11

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Optics Planet Updated Oct 31, 2026

22% OFF

Stern Defense Stern Defense MAG-ADMP45 AR-15/M4/M16 Magazine Conversion Adapter M&P .45 ACP Black 001-SD MAG-AD-MP-45ACP-M - $186.99 at Optics Planet

Stern Defense MAG-ADMP45 AR-15/M4/M16 Magazine Conversion Adapter M&P .45 ACP Black 001-SD MAG-AD-MP-45ACP-M

$186.99 $240.41

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Optics Planet Updated Oct 31, 2026

24% OFF

Stern Defense Stern Defense MAG-AD9 AR-15/M4/M16 Magazine Conversion Adapter Glock 9mm/.40S&W Black 001-SD MAG-AD9-9AND40-M - $179.99 at Optics Planet

Stern Defense MAG-AD9 AR-15/M4/M16 Magazine Conversion Adapter Glock 9mm/.40S&W Black 001-SD MAG-AD9-9AND40-M

$179.99 $237.99

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Optics Planet Updated Oct 31, 2026

22% OFF

Stern Defense Stern Defense MAG-ADB92 AR-15/M4/M16 Magazine Conversion Adapter Beretta 92 9mm Black 001-SD MAG-AD-B92-9MM-M - $186.99 at Optics Planet

Stern Defense MAG-ADB92 AR-15/M4/M16 Magazine Conversion Adapter Beretta 92 9mm Black 001-SD MAG-AD-B92-9MM-M

$186.99 $240.41

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Brownells.com Updated Oct 11, 2026

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Conversion Adapter For S&W M&P/Sig 320 Magazines - $186.99 at Brownells.com

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Conversion Adapter For S&W M&P/Sig 320 Magazines

$186.99

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Brownells.com Updated Oct 11, 2026

Stern Defense Ar-15 M&P 45acp Conversion Adapter - Ar-15 Conversion Adapter For S&W .45acp Magazines - $186.99 at Brownells.com

Stern Defense Ar-15 M&P 45acp Conversion Adapter - Ar-15 Conversion Adapter For S&W .45acp Magazines

$186.99

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Brownells.com Updated Oct 11, 2026

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Conversion Adapter For GlockA(R) Magazines - $179.99 at Brownells.com

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Conversion Adapter For GlockA(R) Magazines

$179.99

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Shooting Surplus Updated Nov 08, 2026

Stern Defense Stern Defense 001SDMAGADMP45ACPM Mag-AD 45 ACP Fits AR-15 Aluminum - $170.89 at Shooting Surplus

Stern Defense 001SDMAGADMP45ACPM Mag-AD 45 ACP Fits AR-15 Aluminum

$170.89

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Shooting Surplus Updated Nov 08, 2026

Stern Defense AR-15 9MM CONVERSION ADAPTER FOR GLOCK~ MAGAZINES - $189.46 at Shooting Surplus

Stern Defense AR-15 9MM CONVERSION ADAPTER FOR GLOCK~ MAGAZINES

$189.46

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Shooting Surplus Updated Nov 08, 2026

Stern Defense AR-15 CONVERSION ADAPTER FOR S&W .45ACP MAGAZINES - $196.83 at Shooting Surplus

Stern Defense AR-15 CONVERSION ADAPTER FOR S&W .45ACP MAGAZINES

$196.83

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Shooting Surplus Updated Nov 08, 2026

Stern Defense AR-15 9MM CONVERSION ADAPTER FOR S&W M&P/SIG 320 MAGAZINES - $170.89 at Shooting Surplus

Stern Defense AR-15 9MM CONVERSION ADAPTER FOR S&W M&P/SIG 320 MAGAZINES

$170.89

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Shooting Surplus Updated Nov 08, 2026

Stern Defense AR-15 9MM COVERSION ADAPTER FOR BERETTA 92 MAGAZINES - $196.83 at Shooting Surplus

Stern Defense AR-15 9MM COVERSION ADAPTER FOR BERETTA 92 MAGAZINES

$196.83

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Palmetto State Armory Updated Nov 08, 2026

Stern Defense Stern Defense AR-15 Mag Well Adapter for 9mm Glock, Black- MAG-AD9 - $202.99 at Palmetto State Armory

Stern Defense AR-15 Mag Well Adapter for 9mm Glock, Black- MAG-AD9

$202.99

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Palmetto State Armory Updated Nov 08, 2026

Stern Defense Stern Defense AR-15 Mag Well Adapter for M&P 9mm/40S&W, Black- MAG-ADMP9&40 - $187.99 at Palmetto State Armory

Stern Defense AR-15 Mag Well Adapter for M&P 9mm/40S&W, Black- MAG-ADMP9&40

$187.99

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Where to buy Stern Defense ar-15

Optics Planet 10 in stock
MidwayUSA 8 in stock
Shooting Surplus 7 in stock
Ammunition Depot 4 in stock
Brownells.com 3 in stock
Palmetto State Armory 2 in stock