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Stern Defense

Firearm parts, accessories

Stern Defense specializes in manufacturing high-quality firearm parts and accessories.

Stern Defense AR-15 Assembled Forged Upper Receiver

4.7 star rating 9 Reviews

$109.00

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Stern Defense 9MM S&W M&P and Sig P320/P250 Magazine Adapter
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4.8 star rating 30620 Reviews

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Verified Reviewer

0.0 star rating

06/27/25

Review by Anonymous User

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06/27/25

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Noel G.
Verified Buyer

3.0 star rating

06/26/25

For compact not full size

Review by Noel G. on 26 Jun 2025 review stating For compact not full size
Says it's for made for the full size in the description, IT IS NOT, it is for the compact. It will still fit the full size, but it will look funny with the slide sticking out about half an inch.

On Icarus Precision ACE Echelon X Aluminum Grip Module

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06/26/25

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Christopher G.
Verified Buyer

3.0 star rating

06/26/25

No weight savings

Review by Christopher G. on 26 Jun 2025 review stating No weight savings
I got this as an alternative to a traditional upper with ejection port cover, forward assist, ramp with the hopes that it would be lighter. But putting this on the scale next to an Aero Precision with all the accoutrements attached, this came in at the same weight. So it's great if you're looking for a no-nonsense upper that is sleek and won't get snagged, but less good it you're goal is to shave off an ounce.

On Icarus Precision AR-15 Billet Stripped Upper Receiver

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06/26/25

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Edwin J.
Verified Buyer

5.0 star rating

06/24/25

Best forgrip

Review by Edwin J. on 24 Jun 2025 review stating Best forgrip
High recommended Buy 2

On A3 Industries Aluminum Modular Vertical Foregrip w/ Integrated Hand Stop - M-LOK 2" Smooth Grip

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06/24/25

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Edwin J.
Verified Buyer

5.0 star rating

06/24/25

Happy

Review by Edwin J. on 24 Jun 2025 review stating Happy
100% worth the money , perfect fit and the lower shipped next day will definitely buy again

On Lee Sporting Aluminum MP5 / SP5 / HK Clone Lower Housing - K Push-Pin

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06/24/25

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Casey
Verified Buyer

4.0 star rating

06/24/25

Great large frame AR option

Review by Casey on 24 Jun 2025 review stating Great large frame AR option
The fit and finish on the receiver set is great. I’ve built on seekins, Geissele, and SiCo AR15 receiver sets, but this set is the best fitting. I would’ve given it 5 outta 5 stars, but when I built up the gun I’ve had some annoying issues with Centurion’s hand guard and their Customer Service. They are working to get issues resolved, but there has been multiple issues in a month long resolution. Not a dig on the receiver’s quality or Rainier in getting it shipped to my ffl in a timely fashion because both were solid.

On Centurion Arms MK11 7.62 Ambidextrous Billet Receiver Set - Black

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06/24/25

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$186.99
Four Payments of $46.75 with . Learn More

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Stern Defense AR 9mm MOD5 MLOK Complete Upper - 10.5"

5.0 star rating 8 Reviews

$539.99
Starting at 0% APR or $54.24/mo with . Learn More

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Stern Defense SD BU9 9mm Bolt Carrier Group For Glock/Colt - Melonite

4.7 star rating 3 Reviews

$129.99

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Stern Defense SD BU9 Echo 9mm Bolt Carrier Group For Glock/Colt - NiB

5.0 star rating 9 Reviews

$169.99
Four Payments of $42.50 with . Learn More

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Stern Defense AR 9mm MOD4 MLOK Complete Upper - 4"

4.7 star rating 11 Reviews

$419.27
Starting at 0% APR or $77.39/mo with . Learn More

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Stern Defense AR .45ACP MOD5 MLOK Complete Upper - 6"

4.5 star rating 2 Reviews

$530.45
Starting at 0% APR or $26.48/mo with . Learn More

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Stern Defense RAB-AD Pic Rail Rapid Attach Buttstock Adapter

$139.99

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Stern Defense RAB-AD Mini Rapid Attach Buttstock Adapter

$139.99

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Stern Defense 9MM Magazine Adapter For Glock

5.0 star rating 10 Reviews

$179.99
Four Payments of $45.00 with . Learn More

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Stern Defense RAB-AD Rapid Attach Buttstock Adapter

5.0 star rating 4 Reviews

$139.99

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Stern Defense AR15/.308 H2S Drop In Trigger

5.0 star rating 4 Reviews

Out of stock

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Stern Defense .45ACP M&P Magazine Adaptor - MAG-ADMP45

4.7 star rating 3 Reviews

$186.99
Four Payments of $46.75 with . Learn More

Out of stock

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Stern Defense 11 OZ Weighted Buffer

4.7 star rating 6 Reviews

$56.00

Out of stock

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