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HAHN PRECISION
AR-15/M16 9MM DROP-IN CONVERSION BLOCKS

100000443

Description
Ratings (5)

Reliable Feeding With A Host Of Ammo Types; Models For Every Shooting Application

One-piece, machined aluminum block converts AR-15 lower receiver to 9mm. Compatible with all, Colt-type, 9mm upper receivers, the feed ramp is cut for reliable feeding with all types of ammo, including hollow point and frangible ball. Roller retention device holds block securely in receiver, prevents accidental release. Hardened steel ejector, feed ramp and bolt hold open give long service life; last-round-hold-open feature on bottom-loading model works when used with Colt magazines. Also works with modified UZI magazines but last-round-hold-open will not function. No receiver modification required. Top-Loading Block installs from the top of the lower receiver and Bottom-Loading Block installs from the bottom of the lower receiver.

SPECS: Aluminum, black, matte finish.

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Customer ratings for HAHN PRECISION BOTTOM-LOADING 9MM CONVERSION BLOCK

Number of ratings: 5
From brownells.com: 5
Average rating: 5

THE BEST! & BETTER THAN ORIGINAL COLT! (26/12/2010)

I have fired an original select fire full-auto COLT SMG (M16/9mm) and have had many malfunctions using 147 grain 9mm ammo. I bought a Rock River Arms 9mm upper receiver assembly and this HAHN Top-Loading 9mm Conversion Block. I also am using original COLT M16/AR15 32 round magazines. I have not experienced any malfunctions with my converted AR15 using 115 grain & 147 grain 9mm ammo in semi-auto or full-auto modes of fire. I also recommend the ENIDINE Hydraulic buffer for recoil reduction and slower rate of fire in full-auto mode. Call me if you have any questions.Cell [@]. GUN SLINGER VIDEOS

Great 9mm block (17/03/2012)

Function has been 100% with 1000+ rnds of misc ball and long ogive HP ammo in following setup, Spikes lower, Spikes 9mm buffer, RRA Upper with CMMG ramped 9mm bolt and CMMG barrel, Metalform, Colt and Spikes mags. Installation is easy as long as you are comfortable performing basic assembly on an AR lower as the bolt catch must be removed and reinstalled. Works just as well as my dedicated Colt. Mileage may vary depending on the quality of your lower.

Works Very Well (31/05/2018)

Works well with C product metal form mags. Drop in is easy to take in & out if your swapping uppers. I did have an issue with the mag catch not poking out enough to grab the magazine. I went with a 9mm Mag catch and then had to take material off the base by the post. This caused it to can't into the wag well more with success. No fault of the drop in.

Fits and works great! (17/02/2013)

As the headline says, this block fits and works great and the finish is fine. The Metalform 32 round magazines slide in and out and lock in place smoothly. The rounds feed and eject perfectly and the bolt locks open when the magazine is empty.
What more could you ask for?

Great product (10/11/2016)

I bought this to use in my SBR lower with a10.5" upper. Functions perfectly with metalform mags with 3 different bullet weights. Easy in and out in about 3 min. At the same time I bought a designated 9mm lower for a 7.5" pistol. Nothing but malfunctions using the same mags.

Read 5 more ratings on brownells.com

234.9 264.9 2 GBP

Product no.: 100000443
HAHN PRECISION BOTTOM-LOADING 9MM CONVERSION BLOCK
Mfr Part: ARCPRB0402 Bottom-Loading 9mm Conversion Block

264.9 GBP 20 £264.90 *

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

Specs: Make: AR-15

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Description

Bottom-Loading 9mm Conversion Block

Attributes

Make: AR-15 Delivery weight: 0.091kg Shipping height: 13mm Shipping width: 86mm Shipping length: 102mm

Item details

Made in USA
US export classification: 0A501.x

Product no.: 100000920
HAHN PRECISION TOP-LOADING 9MM CONVERSION BLOCK
Mfr Part: A9CRT0702 One-piece, machined aluminum block converts AR-15 lower receiver to 9mm. Compatible with all, Colt-type, 9mm upper receivers, the feed ramp is cut for reliable feeding with all types of ammo, including hollow point and frangible ball. Roller retention device holds block securely in receiver, prevents accidental release. Hardened steel ejector, feed ramp and bolt hold open give long service life; last-round-hold-open feature on bottom-loading model works when used with Colt magazines. Also works with modified UZI magazines but last-round-hold-open will not function. No receiver modification required. Top-Loading Block installs from the top of the lower receiver and Bottom-Loading Block installs from the bottom of the lower receiver.

234.9 GBP 15 £234.90 *

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

Specs: Make: AR-15

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Ask question

Details

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Top takeaways

Converts AR-15 lower receiver to 9mm using a one-piece, machined aluminum block compatible with Colt-type 9mm upper receivers.
Features a roller retention device for secure placement, hardened steel components for durability, and supports last-round-hold-open with Colt magazines.
No modification to the receiver needed; available in top-loading and bottom-loading versions for easy installation.