AR-15 to 9mm Glock Conversion Block
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AR-15 to 9mm Glock Conversion Block

Glock Compatible 9mm Conversion Block

The 9mm Glock Compatible Conversion Block is a precision-engineered, drop-in solution that transforms your standard lower receiver into a 9mm-compatible platform, eliminating the need for a dedicated pistol-caliber lower receiver. Designed for seamless integration, it installs into Mil-Spec AR15 receivers with ease, ensuring enhanced versatility without compromising functionality.

$119.99

Availability: In stock

Sylvan Arms

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Description

The Sylvan Arms 9mm Glock Compatible Conversion Block is a high-quality, drop-in solution that enables you to convert your standard AR-15 lower receiver into a 9mm-compatible platform, eliminating the need for a dedicated pistol-caliber lower. Designed for easy installation, it fits seamlessly into Mil-Spec lowers and functions similarly to a standard rifle magazine.

Key Features:

  • Simple installation and quick swap-out capability.
  • Compatible with popular Glock 9mm magazines.
  • Specifically engineered for Mil-Spec lower receivers.
  • Note: Does not include last round bolt hold-open functionality.
  • Note: 9mm upper receiver required for proper functionality.

Technical Specifications:

  • Material: Steel and 6061-T6 Aluminum.
  • Finish: Black Anodized.
  • Weight: 4.2 oz.

Upgrade your AR-15 with the Sylvan Arms 9mm Glock Compatible Conversion Block for enhanced versatility and reliable performance. Enjoy peace of mind with a 100% satisfaction guarantee and the reliability of Sylvan Arms’ limited lifetime warranty.

This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not recognize that this product is compatible with GLOCK products.

Install Video: 

 

Additional information

Condition

NEW, Blemished

User Manual

Reviews

  • This is the one to have. No lrbho, but not an issue for me. Works perfectly . My motto: an AR in every caliber. Wish Sylvan made one in 45acp. Maybe next week.
    - Curt Mills 2022-05-05 23:41:11
  • Better than sliced bread. Great fit. Carefully read instructions. Dug thru my 20 lbs.of hex keys. Found one! Installed the block. Tried 26 mag --- almost, but no cigar. (I have two 17/19 mags coming) . However the 26 mag would cycle if I held it in (just to prove the block would function)(slid right in and out very smoothly tho). Went back inside, reread instruction and found the enclosed hex key. I highly recommend. Lrbho not an issue for me. Getting very close to having a "street legal" Ca AR 9. Thank you very much!
    - Curt Mills 2022-03-28 20:34:24
  • Works great in my Colt M16 and Palmetto State Armory lowers. Fit & Finish very nice, easy to install & remove, runs flawlessly in Full Auto & Semi, used Glock 19 & 33 round mags. Very happy and highly recommend.
    - Captain 2021-11-29 06:29:54
  • High quality piece. Slides freely into Superior Arms lower, very light resistance in my 17 Design Multi Cal. lower. 27 round promag ran flawlessly. I am very impressed. I love the mag release.
    - Charles Dearth 2021-11-24 18:58:36
  • I purchased this to convert a 556 AR lower to 9mm. Works fantastic. Put 9mm barrel on an old 556 upper and added a $109 TRYBE Defense Milspec 9mm BCG and it simply works perfect. Barrel $139. This mag-well conversion and $109 BCG and I have a 9mm AR from an old 556 setup.
    - RtoR 2021-04-23 09:35:09
  • This unit is AWESOME!!!! I have two of them in different manufacturers lowers and they have been 100% in both lowers. Shot hollow point, fmg, flat point and they all have functioned perfectly. The ETS mags drop freely, the only ones that are a little tight are the factory Glock mags. I like the ETS mags better anyway.
    - Stan 2021-04-19 11:50:06
  • I've shot about 500 rounds through my 9mm build, not a single malfunction. Ive used Glock, KCI and ETS with no issues. All mags fed and ejected normally. Hope you guys make one for the M&P9/40.
    - Bill D 2020-08-25 11:44:10
  • It works well, but man is it tight to get in and the after market mags I am using are also a very tight fit. Just a hair more room would be great.
    - Darryl 2020-07-11 13:00:53
  • I've used dedicated glock-mag lowers from QC10, PSA, and New Frontier and have also install the TorkMag adapter so I've been around the block a bit with small-frame Glock use in AR form factor. I saw Primary Arms had a unit on sale and picked one up to test out. Frankly I was expecting at least some fussiness, however, this conversion block ran flawlessly with the 9mm upper I took out to test it with. Not one malfunction at all. Ran 115gr bulk Remington, some Federal bulk 115gr, some Blazer 147gr, and some PPU 147gr JHP. All worked w/o issue. Getting used to the position of the magazine release was a bit awkward (dedicated lowers and the TM kit all use the standard mag-release location), however, grabbing the mag and pulling the release with the off-hand index finger was easy to get used to. Mags do not drop free (at least in the one I picked up). I have to say I'm very pleased with this unit and have recommended it to my gun-owning friends that were looking into a glock-mag-fed 9mm AR, but didn't want to buy a new dedicated lower (or mess with having to modify your mags like the TorkMag unit).
    - Janz 2018-07-21 14:55:43

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