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Stern Defense SD BU40 Original .40 S&W Bolt Carrier for AR-15 Glock-Pattern Upper Receiver 004-SD BU40-D1-M

Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M
Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M
Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M
1 of 2 images
Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M
Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M
2 of 2 images
Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M

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Questions & Answers
Is this compatible with 10mm ? Expert Answer

Yes. The Stern Defense SD BU40 Original .40 S&W Bolt Carrier will fit and function with 10mm as well as .40 cal. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles.

by Ethan, Gear Expert, April 7, 2022
Will this bolt work in a foxtrot mike upper with side charging handle? Expert Answer

The Stern Defense SD BU40 Original .40 S&W Bolt Carrier is no longer available. I would recommend the Stern Defense SD BU40 Bolt Carrier, found by using the link below:
https://www.opticsplanet.com/stern-defense-sd-bu40-bolt-carrier.html

by Ethan, Gear Expert, July 5, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
Good bolt carrier group by Fishyeater, June 28, 2020
Nice quality very well made looks great easy to clean the fit and finish does the job and functions flawlessly! Bcg was also on stock ready to be shipped and at a good price for the going rate these days!
Read 1 Review
Color:
Black
Fabric/Material:
Melonite
Caliber:
.40 S&W
Condition:
New
Additional Features:
Constructed from 8620 AISI steel., Custom 4140 billet extractor providing superior ejection., Glock cut.

Code: 3JS-BCG-SDBU4-004-SD-BU40-D1-M

MPN: 004-SD BU40-D1-M

UPC: 860141001539

Product No Longer Available

Product Info for Stern Defense SD BU40 Original .40 S&W Bolt Carrier for AR-15 Glock-Pattern Upper Receiver

Made with 8620 AISI steel and boasting a Melonite finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring. Also included in bolt assembly is a propriety center and roll pins.image

Package Contents:

  • Stern Defense SD BU40 .40 S&W Bolt Carrier for AR-15 Glock-Pattern Upper Receiver

Ammunition

1–40 / 40
Previous
Hornady Critical Defense .40 S&W 165 grain Flex Tip eXpanding Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91340
Hornady Critical Defense .40 S&W 165 grain Flex Tip eXpanding Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91340
(3)
List: $44.08 (Save 24%)
$33.49
$1.67/Round
Super Vel Ammunition 40 S&W 180 grain Full Metal Jacket Brass Cased Pistol Ammunition
Super Vel Ammunition 40 S&W 180 grain Full Metal Jacket Brass Cased Pistol Ammunition
As Low As (Save Up to 35%)
$28.49
$0.51 - $0.57/Round
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Freedom Munitions .40S&W 180 Grain RNFP Brass Pistol Ammunition
Freedom Munitions .40S&W 180 Grain RNFP Brass Pistol Ammunition
As Low As (Save Up to 24%)
$18.99
$0.35 - $0.40/Round
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Nosler ASP .40 S&W 180 Grain Jacketed Hollow Point Brass Cased Cased Pistol Ammunition
Nosler ASP .40 S&W 180 Grain Jacketed Hollow Point Brass Cased Cased Pistol Ammunition
(5)
As Low As (Save Up to 46%)
$20.99
$0.78 - $1.05/Round
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Fiocchi Defense Dynamics .40S&W 180 Grain JHP Brass Pistol Ammo, 50 Rounds, 40SWE
Fiocchi Defense Dynamics .40S&W 180 Grain JHP Brass Pistol Ammo, 50 Rounds, 40SWE
(1)
List: $29.99 (Save $1.50)
$28.49
$0.57/Round
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Remington UMC .40 S&W 180 Grain Full Metal Jacket Pistol Ammunition
Remington UMC .40 S&W 180 Grain Full Metal Jacket Pistol Ammunition
(6)
As Low As (Save Up to 21%)
$30.49
$0.53 - $0.61/Round
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Freedom Munitions .40 S&W 165 Grain Hollow Point Brass Pistol Ammunition
Freedom Munitions .40 S&W 165 Grain Hollow Point Brass Pistol Ammunition
As Low As (Save Up to 19%)
$19.99
$0.36 - $0.40/Round
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Cor Bon 40 S&W 150 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 20 Rounds, SD40150/20
Cor Bon 40 S&W 150 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 20 Rounds, SD40150/20
(1)
List: $27.99 (Save 16%)
$23.49
$1.17/Round
Nosler ASP .40 S&W 150 Grain Jacketed Hollow Point Brass Cased Cased Pistol Ammunition
Nosler ASP .40 S&W 150 Grain Jacketed Hollow Point Brass Cased Cased Pistol Ammunition
(4)
As Low As (Save Up to 12%)
$18.49
$0.79 - $0.92/Round
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Winchester USA Handgun .40 S&W 165 grain Full Metal Jacket (FMJ) Brass Casing Centerfire Pistol Ammunition
Winchester USA Handgun .40 S&W 165 grain Full Metal Jacket (FMJ) Brass Casing Centerfire Pistol Ammunition
(14)
As Low As (Save Up to 46%)
$36.99
$0.37 - $0.46/Round
See all 2 models
Cor Bon 40 S+W 140 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammo, 20 Rounds, DPX40140/20
Cor Bon 40 S+W 140 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammo, 20 Rounds, DPX40140/20
(1)
List: $27.99 (Save 11%)
$24.99
$1.25/Round
Remington UMC .40 S&W 180 Grain Jacketed Hollow Point Pistol Ammunition
Remington UMC .40 S&W 180 Grain Jacketed Hollow Point Pistol Ammunition
(2)
As Low As (Save Up to 11%)
$34.99
$0.70/Round
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PMC Bronze Ammo .40 S&W 165 Grain Full Metal Jacket Brass Casing Centerfire Pistol Ammo, 50 Rounds, 40D
PMC Bronze Ammo .40 S&W 165 Grain Full Metal Jacket Brass Casing Centerfire Pistol Ammo, 50 Rounds, 40D
(6)
List: $28.99 (Save 22%)
$22.49
$0.45/Round
Federal Premium Syntech Defense 40 S&W 175 Grain Segmented Hollow Point Pistol Ammunition
Federal Premium Syntech Defense 40 S&W 175 Grain Segmented Hollow Point Pistol Ammunition
As Low As (Save Up to 15%)
$25.49
$1.17 - $1.27/Round
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Remington Golden Saber Defense .40 S&W 180grain Brass-Jacketed Hollow Point Brass Pistol Ammo, 20 Rounds, 27608
Remington Golden Saber Defense .40 S&W 180grain Brass-Jacketed Hollow Point Brass Pistol Ammo, 20 Rounds, 27608
List: $40.99 (Save 26%)
$30.29
$1.51/Round
Speer Gold Dot Personal Protection .40 S&W 165 Grain Hollow Point Pistol Ammo, 20 Rounds, 23970GD
Speer Gold Dot Personal Protection .40 S&W 165 Grain Hollow Point Pistol Ammo, 20 Rounds, 23970GD
(1)
List: $45.99 (Save 16%)
$38.49
$1.92/Round
Barnes Tac-Xpd DefenseHandgun Cartridges, .40 S&W, TAC-XP, 140 Grain, 20 - Rounds, 21554
Barnes Tac-Xpd DefenseHandgun Cartridges, .40 S&W, TAC-XP, 140 Grain, 20 - Rounds, 21554
(3)
List: $34.99 (Save 16%)
$29.29
$1.46/Round
PMC Ammunition Bronze .40 S&W 165 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 40B
PMC Ammunition Bronze .40 S&W 165 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 40B
(2)
List: $52.49 (Save 50%)
$25.99
$0.52/Round
On Sale
Hornady Critical Duty .40 S&W 175 grain FlexLock Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91376
Hornady Critical Duty .40 S&W 175 grain FlexLock Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91376
List: $45.31 (Save 34%)
$29.99
$1.50/Round
On Sale
SinterFire Reduced Hazard .40 S&W 125 Grain Frangible Brass Cased Pistol Ammo, 50 Rounds, SF40125RHA
SinterFire Reduced Hazard .40 S&W 125 Grain Frangible Brass Cased Pistol Ammo, 50 Rounds, SF40125RHA
List: $42.59 (Save 32%)
$28.79
$0.58/Round
On Sale
SinterFire Special Duty Self-Defense .40 S&W 125 Grain Hollow Point Frangible Brass Cased Pistol Ammo, 20 Rounds, SF40125SD-200
SinterFire Special Duty Self-Defense .40 S&W 125 Grain Hollow Point Frangible Brass Cased Pistol Ammo, 20 Rounds, SF40125SD-200
(8)
List: $18.09 (Save 29%)
$12.89
$0.64/Round
Norma Safeguard .40 S&W 165 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 801407887
Norma Safeguard .40 S&W 165 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 801407887
List: $42.79 (Save 17%)
$35.59
$0.71/Round
Federal Premium .40 S&W 180 Grain Jacketed Hollow Point Brass Pistol Ammo, 50 Rounds, TP40VHP1
Federal Premium .40 S&W 180 Grain Jacketed Hollow Point Brass Pistol Ammo, 50 Rounds, TP40VHP1
(1)
List: $70.49 (Save 41%)
$41.49
$0.83/Round
Blazin' Deal
Speer Lawman Training .40 S&W 165 Grain Total Metal Jacket Pistol Ammo, 50 Rounds, 53955
Speer Lawman Training .40 S&W 165 Grain Total Metal Jacket Pistol Ammo, 50 Rounds, 53955
(1)
List: $33.99 (Save 28%)
$24.49
$0.49/Round
On Sale
SIG SAUER V-Crown Ammo .40 S&W 165 grain Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo, 20 Rounds, E40SW1-20
SIG SAUER V-Crown Ammo .40 S&W 165 grain Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo, 20 Rounds, E40SW1-20
List: $29.99 (Save 25%)
$22.49
$1.12/Round
Lehigh Defense Xtreme Defense .40 S&W 115 Grain Fluid Transfer Monolithic Brass Cased Centerfire Pistol Ammo, 20 Rounds, LA40115XD
Lehigh Defense Xtreme Defense .40 S&W 115 Grain Fluid Transfer Monolithic Brass Cased Centerfire Pistol Ammo, 20 Rounds, LA40115XD
(1)
List: $37.95 (Save 12%)
$33.49
$1.67/Round
SIG SAUER V-Crown Ammo .40 S&W 180 grain Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo, 20 Rounds, E40SW2-20
SIG SAUER V-Crown Ammo .40 S&W 180 grain Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo, 20 Rounds, E40SW2-20
(2)
List: $29.99 (Save $1.00)
$28.99
$1.45/Round
G2 Research Ammunitions R.I.P. .40 S&W 115 Grain Hollow Point Brass Cased Pistol Ammo, 20 Rounds, RIP 40 S&W
G2 Research Ammunitions R.I.P. .40 S&W 115 Grain Hollow Point Brass Cased Pistol Ammo, 20 Rounds, RIP 40 S&W
List: $75.79 (Save 45%)
$41.99
$2.10/Round
Norma Range and Training .40 S&W 180 Grain Full Metal Jacket Brass Cased Pistol Ammo, 50 Rounds, 801407652
Norma Range and Training .40 S&W 180 Grain Full Metal Jacket Brass Cased Pistol Ammo, 50 Rounds, 801407652
List: $23.99 (Save 12%)
$21.19
$0.42/Round
Hornady Subsonic .40 S&W 180 grain eXtreme Terminal Performance Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91369
Hornady Subsonic .40 S&W 180 grain eXtreme Terminal Performance Brass Cased Centerfire Pistol Ammo, 20 Rounds, 91369
List: $36.72 (Save 24%)
$27.99
$1.40/Round
Winchester .400 Legend Power PT 215 Grain Brass Case Centerfire Rifle Ammo, 20RD BX 200RD CASE, WINCX4001
Winchester .400 Legend Power PT 215 Grain Brass Case Centerfire Rifle Ammo, 20RD BX 200RD CASE, WINCX4001
List: $65.50 (Save 36%)
$41.99
$2.10/Round
Super Vel Ammunition 40 S&W 125 grain Solid Copper Hollow Point Brass Cased Pistol Ammunition
Super Vel Ammunition 40 S&W 125 grain Solid Copper Hollow Point Brass Cased Pistol Ammunition
As Low As (Save Up to 12%)
$29.99
$1.40 - $1.50/Round
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BarnauL Polycoated Steel Case Rifle Ammo .40 S&W 165 gr FMJ 984 fps 500/ct Case, BRN 40SW FMJ165C
BarnauL Polycoated Steel Case Rifle Ammo .40 S&W 165 gr FMJ 984 fps 500/ct Case, BRN 40SW FMJ165C
List: $269.99 (Save 19%)
$217.49
$0.43/Round
Federal Premium Champion Training 40 S&W 180 Grain Full Metal Jacket Brass Brass Pistol Ammunition
Federal Premium Champion Training 40 S&W 180 Grain Full Metal Jacket Brass Brass Pistol Ammunition
(1)
As Low As (Save Up to 10%)
$22.99
$0.45 - $0.46/Round
See all 2 models
Freedom Munitions .40 S&W 165 Grain Round Nose Flat Point Brass Pistol Ammunition
Freedom Munitions .40 S&W 165 Grain Round Nose Flat Point Brass Pistol Ammunition
As Low As (Save Up to 12%)
$20.49
$0.39 - $0.41/Round
See all 3 models
Best Rated
Winchester USA Handgun .40 S&W 165 grain Full Metal Jacket Brass Cased Centerfire Pistol Ammunition
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(6)
As Low As (Save Up to 47%)
$20.99
$0.41 - $0.42/Round
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Underwood Ammo .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo, 20 Rounds, 223
Underwood Ammo .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo, 20 Rounds, 223
(1)
List: $38.18 (Save 28%)
$27.49
$1.37/Round
G9 Defense .40 S&W 95 Grain External Hollow Point Brass Cased Pistol Ammo, 20 Rounds, E-40SW-95A
G9 Defense .40 S&W 95 Grain External Hollow Point Brass Cased Pistol Ammo, 20 Rounds, E-40SW-95A
(2)
List: $53.99 (Save 19%)
$43.99
$2.20/Round
Magtech 40 S&W 180 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 40A
Magtech 40 S&W 180 Grain Jacketed Hollow Point Brass Cased Pistol Ammo, 50 Rounds, 40A
(2)
List: $27.29 (Save $2.30)
$24.99
$0.50/Round
Magtech AMMO 40 S&W 180GR FMJ 1000 RD CASE, 40BC
Magtech AMMO 40 S&W 180GR FMJ 1000 RD CASE, 40BC
List: $543.00 (Save 14%)
$464.49
$0.46/Round
Next

Ammo Boxes

1–16 / 16
Previous
MTM Ammo Box .45acp/.40sw/10mm 200-rounds, Clear Blue, P2004524
MTM Ammo Box .45acp/.40sw/10mm 200-rounds, Clear Blue, P2004524
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$9.99
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MTM P-100 Fliptop Box .45 ACP/10mm/.40 S&W/.41 AE, Clear Green/Black, P-100-45-16T
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(6)
List: $5.62
$5.49
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Frankford Arsenal Reloading Tools Hinge-Top Ammo Box, #1008, 10mm-45 ACP 100 ct., 1083798
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(11)
List: $8.95 (Save 27%)
$6.49
Berry's Manufacturing Ammo Box #008 - .40/45 ACP/10mm Zombie Green & Black -100 rds, JF00600
Berry's Manufacturing Ammo Box #008 - .40/45 ACP/10mm Zombie Green & Black -100 rds, JF00600
$5.49
Berrys 67789 008 Ammo Box 40 S&W,45 ACP 100rd Blue Lid W/Black Bottom
Berrys 67789 008 Ammo Box 40 S&W,45 ACP 100rd Blue Lid W/Black Bottom
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$5.49
Berrys 92199 008 Ammo Box 40 S&W,45 ACP 100rd Smoke Lid W/Black Bottom
Berrys 92199 008 Ammo Box 40 S&W,45 ACP 100rd Smoke Lid W/Black Bottom
(1)
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$5.49
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RCBS Impact Resistant Ammo Box .44 Mag 7701E936, RC86917
RCBS Impact Resistant Ammo Box .44 Mag 7701E936, RC86917
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MTM Ammo Box .45acp/.40sw/10mm 200-rounds, Green, P2004510
MTM Ammo Box .45acp/.40sw/10mm 200-rounds, Green, P2004510
List: $15.99 (Save 39%)
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Berrys 13897 408 Ammo Box 40 S&W,45 ACP 50rd Smoke Lid W/Black Bottom
Berrys 13897 408 Ammo Box 40 S&W,45 ACP 50rd Smoke Lid W/Black Bottom
List: $3.99 (Save 25%)
$2.99
Berrys 38861 408 Ammo Box 40 S&W,45 ACP 50rd Blue Lid W/Black Bottom
Berrys 38861 408 Ammo Box 40 S&W,45 ACP 50rd Blue Lid W/Black Bottom
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$2.99
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MTM P50 Fliptop Box Handgun .45 ACP/10mm/.40 S&W/.41 AE, Clear Green, P50-45-16
MTM P50 Fliptop Box Handgun .45 ACP/10mm/.40 S&W/.41 AE, Clear Green, P50-45-16
(5)
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BERRYS 40 CAL PLASTIC AMMO CAN, BLACK, 00330
BERRYS 40 CAL PLASTIC AMMO CAN, BLACK, 00330
(1)
List: $13.99 (Save 43%)
$7.98
BERRYS 91151 40 CAL PLASTIC AMMO CAN TAN
BERRYS 91151 40 CAL PLASTIC AMMO CAN TAN
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Plano Handgun Ammo Case,Dark Gray/Transparent Rose, PMC122750
Plano Handgun Ammo Case,Dark Gray/Transparent Rose, PMC122750
(3)
List: $15.98 (Save 44%)
$8.99
Berrys 16678 008 Ammo Box 40 S&W,45 ACP 100rd Clear Lid W/Black Bottom
Berrys 16678 008 Ammo Box 40 S&W,45 ACP 100rd Clear Lid W/Black Bottom
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Berrys 67425 408 Ammo Box 40 S&W,45 ACP 50rd Clear Lid W/Black Bottom
Berrys 67425 408 Ammo Box 40 S&W,45 ACP 50rd Clear Lid W/Black Bottom
(1)
List: $5.97 (Save 50%)
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Stern Defense SD BU40 Original .40 S&W Bolt Carrier for AR-15 Glock-Pattern Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • Stern Defense SD BU40 Bolt Carrier, AR-15 Glock-Pattern Upper Receiver, .40 S&W, Black, 004-SD BU40-D1-M , MPN: 004-SD BU40-D1-M , UPC: 860141001539 , Code: 3JS-BCG-SDBU4-004-SD-BU40-D1-M
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