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Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK
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Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK
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Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK
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Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK
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Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK
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Questions & Answers
Customer Reviews
Helpful Positive Review
Second trip out today with this upper. Has eaten everything 115gr I have fed it; on-line remans, reloads, new brass, steel & aluminum. Not as loud as I expected. I assume the blast forward device helps. Only downside so far is accuracy. My groups ...
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1/1 found this helpful
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Helpful Positive Review
I assumed that it was a dedicated 9 mm upper that it would not have a forward assist it seems as though they used some surplus uppers 4 rifle cartridge and just built pistol caliber uppers still cool just not dedicated more like a Frankenstein
3/10 found this helpful
Helpful Positive Review
Great to have and fun to shoot. Small light weight and versatile. Using if for multiple applications either hunting coyotes or training. I’m in love shooting it but since ammo is rare and hard to come by I haven’t had much play time lately.
2/2 found this helpful
Most Recent Reviews
Was pleasantly surprised to find the quality of the upper to be better than expected. Fit/finish was excellent and dropped perfectly on to both my Daniel Defense and Anderson carbine length pistol lowers without issue. Paired up with their Glock maga...
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Most Recent Reviews
Great upper receiver couldn’t pass on a deal when it went on sale. Watched videos and reviews how well Stern Defense 9mm holds up and I was very impressed how sustainable the barrel is. After receiving my upper, I test it at the range and I was at a...
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We've got an AWESOME deal for you!
Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
- Caliber:
- 9mm Luger
- Barrel Length:
- 4 in
- Barrel Twist Rate:
- 1-10
- Muzzle Device:
- Muzzle Brake
- Finish:
- Matte
- Color:
- Black
- Condition:
- New
- Additional Features:
- Threaded .5-36
Code: 3JS-URC-SDURCSDMML9-SDINBRLKK
MPN: 015-SD4INCHMOD4MLOK4INCHBARREL9MM-KK
UPC: 850001176200
Blazin' Deal
List: $429.27Save $10.00
$419.27
ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.
Product Info for Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver
Stern Defense 4 inch M-LOK rail(Barrel nut, bolts etc.)
Stern Defense 4 inch 9mm barrel.
SD MBC 9MM Blast Can.
Stern Defense assembled upper receiver with dust cover and forward assist.
Stern Defense SD BU9 Glock cut bolt.
SD CH1 enhanced charging handle.
Will come assembled.
Information:
Handguard.
The free float M-LOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and strong. This handguard is M-LOK compatible to accept your favorite attachments. Features a secure clamp on mounting system that ensures that the handguard remains in place even under heavy abuse, sustained full auto fire, and shooting prone from a bi-pod. Machined from 6061 aircraft grade aluminum and hard-coat anodized for longevity and durability. These handguards also feature quick disconnect swivel holes.
Also Included, Barrel Nut and Bolts.
Specifications for Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver:
| Manufacturer: | Stern Defense |
| Caliber: | 9mm Luger |
| Barrel Length: | 4 in |
| Barrel Twist Rate: | 1-10 |
| Muzzle Device: | Muzzle Brake |
| Finish: | Matte |
| Color: | Black |
| Fabric/Material: | Melonite |
| Magazine Included: | No |
| Condition: | New |
| Additional Features: | Threaded .5-36 |
Features of Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver
- Barrel length is measured in overall length from breech to muzzle.
- Caliber: 9mm.
- Length: 4 Inches.
- Threaded .5-36.
- 1:10 TWIST.
- 4150 Chrome-moly steel.
- Melonite coating.
Package Contents:
- Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver
Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver Orderable Models
List of Orderable Models
- Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK , MPN: 015-SD4INCHMOD4MLOK4INCHBARREL9MM-KK , UPC: 850001176200 , Code: 3JS-URC-SDURCSDMML9-SDINBRLKK
Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver Unavailable & Discontinued Models
List of Unorderable Models
- USED, Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK , MPN: 015-SD4INCHMOD4MLOK4INCHBARREL9MM-KK-EDE , Code: 3JS-URC-SDURCSDMML9-SDINBRLKK-EDEMO-RE-C
- USED Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm, Black Complete Upper Receiver, Black, SDINBRLKK, EDEMO1, Condition Fair, Other , MPN: 015-SD4INCHMOD4MLOK4INCHBARREL9MM-KK-EDE , Code: 3JS-URC-SDURCSDMML9-SDINBRLKK-EDEMO-OT-D
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