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STERN DEFENSE
AR-15 9MM CONVERSION ADAPTER

860141001508 100027483

Description
Ratings (6)

Easily Convert Your Lower to 9mm

There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply of. Stern Defense make two differ models of their Conversion Adapter, one which uses Glock® magazines, and one which uses either Smith & Wesson M&P or Sig 320/250 magazines. The Stern Defense AR-15 9mm Conversion Adapter is easily installed into any mil-spec AR-15 lower receiver within seconds and even incorporates a last-round bolt hold open feature. Each adapter is machined from aluminum and requires the use of a 9mm/.40 S&W barrel and a Glock-cut bolt. Made of aircraft grade aluminum Lightweight, ergonomic design Installs in seconds If you’re considering converting your AR-15 to a 9mm, give the Stern Defense Adapter a thought!

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Customer ratings for STERN DEFENSE AR-15 9MM CONVERSION ADAPTER FOR GLOCK® MAGAZINES

Number of ratings: 6
From brownells.com: 6
Average rating: 4.7

Great product so far. (25/06/2018)

Product is well machined and well thought out. The bolt hold open design works great as opposed to some others. Magazine release feels natural for both strong and weak side support. The only mod required was removal of the integral feed ramp because the upper is a Taccom ULW upper that already has a barrel ramp. Removing the ramp was easily accomplished with an allen wrench. The customer service rep at Stern was very helpful with this. Specs are as follows:

Taccom ULW complete upper with ramp and bolt mod,

Taccom adjustable buffer system,

Spikes mil spec multi cal lower,

Geissele of some kind

Stern 9mm Adapter (26/06/2018)

I bought this produce so I wouldnât have to but a different lower receiver. I did call Stern because it would not let me cycle the bolt with the adapter fully seated. I had bought a Foxtrot Mike upper. Stern said that for $7.50 they would mill .035 off the bolt plus shipping both ways. It works like a charm now. Very impressed with the product and Sternâs costumer service.

Use those Glock mags for PCC. (30/06/2018)

Works great with my FM upper after the bolt mod. Bolt hold open does not work with the Magpul mags. Works perfectly with glock and ETS

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<img width="500" src='/userdocs/reviewimages/8877b0c3-427e-45e9-8999-5f28dfeee27b.jpg' alt=''>

Reliable (01/07/2018)

Building a 9mm AR Carbine on a budget can quickly become an expensive endeavor if you buy unreliable parts. The AR-15 9mm Conversion Adapter for GlockÂ® Magazines by STERN DEFENSE Is a reliable way to use Glock magazines in a Mil-spec lower. I use it for USPSA PCC division and Steel Challenge matches to keep the feel of an M-4 and for training. Iâve personally tried other methods and this system is far superior. The feed ramp angle on 9mm is critical for proper function and reliability, with the vast array of projectile profiles. So far Iâve had luck with multiple types of 9mm projectiles I.E. Winchester 124gr FMJ, 145gr RN Bayou, and 147gr FP/HP Berryâs. The last round Bolt hold open is somewhat unnecessary for PCC, however, is great to feel the weight transfer of the bolt carrier group and buffer and have it lock on the last round.

The only feature that I dislike is the magazine release is located at the bottom of the unit which is not a big deal if your state allows âstandard capacityâ magazines. However, Iâd like index the same magazine release in the same configuration of an AR series firearm, which would be difficult without permanently modifying the magazine. Overall a great product the moment you open the package you can see that a lot of thought went into its development and manufacturer.

Awesome (21/08/2018)

Been looking for a reliable 9mm conversion for almost a year and after tons of researches (forum and YT), I decided to bite the bullet and purchase Stern Defense.

I have to say this thing is amazing, I installed this to my Anderson lower and it fits perfectly no play and nothing. To be on the safe side, I purchased Stern Defense Upper (from their website) paired with their H3 Buffer.

Went to the range today and shot 1000rounds and ZERO hiccup! I ran all kinds of ammo (freedommunitions 115/147gn, Fiocchi 115gn, and Sellier&Bellot 115gn)

All and all, I'm very satisfied with the product!

Not perfect but close (06/10/2018)

This adapter is fantastic. The pistol I used fed reliably from all the Glock mags that fit in the well, including 40 S&W and 357 SIG magazines. Installation and adjustment is a matter of turning in one screw to set it, and then two more for standoffs so it doesn't move around when you seat a new magazine.

The only reason I took off a star is because the mag release is a little awkward to use, the thing was very sticky with an aftermarket 9mm drum magazine, and the bolt hold open was a little hyper aggressive and held the bolt open with one still in the magazine.

Read 6 more ratings on brownells.com

269.9 279.9 3 GBP

Product no.: 100027483
STERN DEFENSE AR-15 9MM CONVERSION ADAPTER FOR GLOCK® MAGAZINES
Mfr Part: 001-SD MAG-AD9- 860141001508 There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply of. Stern Defense make two differ models of their Conversion Adapter, one which uses Glock® magazines, and one which uses either Smith & Wesson M&P or Sig 320/250 magazines. The Stern Defense AR-15 9mm Conversion Adapter is easily installed into any mil-spec AR-15 lower receiver within seconds and even incorporates a last-round bolt hold open feature. Each adapter is machined from aluminum and requires the use of a 9mm/.40 S&W barrel and a Glock-cut bolt. Made of aircraft grade aluminum Lightweight, ergonomic design Installs in seconds If you’re considering converting your AR-15 to a 9mm, give the Stern Defense Adapter a thought!

269.9 GBP 0 £269.90 *

Backordered, delivery time approx. 4-12 weeks from the USA warehouse.

Specs: Make: AR-15

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Top takeaways

The Stern Defense AR-15 9mm Conversion Adapter allows for the use of Glock® or other popular pistol magazines in your AR-15 lower receiver.
This adapter installs in seconds into any mil-spec AR-15 lower receiver and features a last-round bolt hold open.
Machined from aircraft grade aluminum, the adapter is lightweight and requires a 9mm/.40 S&W barrel and a Glock-cut bolt for operation.

Attributes

Make: AR-15 Delivery weight: 0.268kg Shipping height: 84mm Shipping width: 110mm Shipping length: 171mm UPC : 860141001508

Item details

Made in USA
US export classification: 0A501.x

Product no.: 100039214
STERN DEFENSE AR-15 9MM COVERSION ADAPTER FOR BERETTA 92 MAGAZINES
Mfr Part: 001SDMAGADB929M 860141001591 There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply of. Stern Defense make two differ models of their Conversion Adapter, one which uses Glock® magazines, and one which uses either Smith & Wesson M&P or Sig 320/250 magazines. The Stern Defense AR-15 9mm Conversion Adapter is easily installed into any mil-spec AR-15 lower receiver within seconds and even incorporates a last-round bolt hold open feature. Each adapter is machined from aluminum and requires the use of a 9mm/.40 S&W barrel and a Glock-cut bolt. Made of aircraft grade aluminum Lightweight, ergonomic design Installs in seconds If you’re considering converting your AR-15 to a 9mm, give the Stern Defense Adapter a thought!

279.9 GBP 15 £279.90 *

Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse

Specs: Make: AR-15

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Product no.: 100033498
STERN DEFENSE AR-15 9MM CONVERSION ADAPTER FOR S&W M&P/SIG 320 MAGAZINES
Mfr Part: 001SDMAGADMP9AN 850001176217 There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply of. Stern Defense make two differ models of their Conversion Adapter, one which uses Glock® magazines, and one which uses either Smith & Wesson M&P or Sig 320/250 magazines. The Stern Defense AR-15 9mm Conversion Adapter is easily installed into any mil-spec AR-15 lower receiver within seconds and even incorporates a last-round bolt hold open feature. Each adapter is machined from aluminum and requires the use of a 9mm/.40 S&W barrel and a Glock-cut bolt. Made of aircraft grade aluminum Lightweight, ergonomic design Installs in seconds If you’re considering converting your AR-15 to a 9mm, give the Stern Defense Adapter a thought!

279.9 GBP 0 £279.90 *