Product Description
For those of you looking for fast mag changes: this modular magazine housing assembly allows for the use of either 9mm or 45 ACP Glock-pattern magazines. The main housing sleeves over the receiver and contains the barrel change lever with the new & improved ball detent catch. Separate mag adapters attach to the housing by means of the front “D” Pin and the front Fire Control Group (FCG) small HK standard pin that also secures the main housing to the FCG. It only takes these 2 pins to swap magazine adapters with no tools required. The HK pin at the front of the FCG and the rear of the magazine housing is a spring-loaded push pin. The front “D” pin is retained by the barrel change lever.
Compatibility:
• All Universal Pattern Guns with the STG34 FCG
• All Universal KP31 FCG with Front Relief Cut as Shown in Picture #3
Includes:
- 1 x Housing Assembly with Barrel Change Lever and Front Mont Pin
- 1 x 9mm Glock Pattern Magazine Adapter Housing with Left-Side Release Latch
- 1 x 45 ACP Glock Pattern Magazine Adapter Housing with Left-Side Release Latch
- All components: Milled Steel with Parkerized Finish
** We found that some mags fit and function better than others in or housings.
9mm mags that work well:
Factory 15 - Dops on release. These with the Kriss extensions are very good.
Factory 33 - Tighter fit than 15
Magpul drums and mags - Drops on release. The short-tower drums are better to use than the long-tower drums.
ProMag Drum: tight and lower quality but works
ETS - Drops on release - lower quality but works
45ACP mags that work well:
Factory - Drops on release. These with the Kriss extensions are very good.
Korean 26rd from Centerfire - Drops on release and work well.
SMG - Tighter fit than factory but work
RWB Drum - Tight but works
** Please call or write to verify compatibility with your gun (info@brpguns.com, 678-425-9585). If you have an STG setup with a rear takedown screw, you will also need the newer rear takedown pin that's compatible with the newer push-pin takedown setup installed in this fire control assembly.
