Name that gun 12-19 Heckler-Koch MSG90A1

Name that gun 12-19 Heckler-Koch MSG90A1


The Heckler-Koch MSG90A1 was released in 1987 and is designed after Heckler-Koch’s PSG1 (Präzisionsschützengewehr, German for “precision-shooting rifle”) which was introduced in 1972.

The MSG90A1 is the militarized version of the H&K PSG1.

Caliber: 7.62mm x 51 (.308 WIN)
Width: 2.32”
Height: 10.43”
Weight (Empty): 15.60 lbs.
Barrel Length: 23.62’”
Overall Length: 46.65”
Action and Operation: Semi auto, delayed blowback.
Barrel: Cold-forged, quenched and tempered barrel
Stock: Adjustable Butt stock lengthwise, vertically and cheek-piece
Magazine: 5 or 20-round detachable box magazine.
Effective range: 800 m

The rifle has a free-floating barrel and comes with a detachable flash suppressor and that allows for a screw-on sound suppressor.

The ejection port is on the right side and has a brass deflector that  allows the gun to be fired by a left handed shooter without sending hot brass into their face. The brass shoots forward which helps if you are shooting next to someone because it stops the brass from being shot into their face also. The deflector limits the damage to brass casings making the brass easier to reload.

The MSG90A1 is made for the U.S. Department of Defense and used by  some of the Hostage Rescue Teams of the FBI.


AAC .300 BLK Honey Badger PDW

AAC .300 BLK Honey Badger PDW

AAC Honey badger

Caliber: .300 AAC Blackout
Barrel length: 6 inches
Overall Length w/ Suppressor: 24-29 inches
Weight: 6.5 pounds (unloaded)
STOCK: Collapsible
ACTION: Semi-auto
Magazine: Standard AR style magazines

The Advanced Armament Corporation showed off their new Honey Badger at the AUSA expo back in October 2011.

The .300 BLK cartridge was developed as one step forward towards the goal of replacing the MP5-SD with a more accurate and more powerful firearm for our troops and law enforcement officers. As John Hollister said many times when we were out on the range, when officers go in for a high risk warrant they can either take the quiet yet underpowered MP5-SD or the noisy and gigantic AR-15. AAC wanted to make something that had the ease of use of an AR-15 but the portability of a MP5, that could go from subsonic rounds to supersonic rounds with the change of a magazine. The .300 BLK cartridge gave them the round, but the Honey Badger is the final design.

The stock is based on the H&K sliding stock design but adapted for the AR-15 platform and uses a custom designed upper receiver that has slots built in for the rails to slide along. The receiver and stock were both designed by AAC’s R&D gurus at the request of a military organization that shall not be named. The barrel is only about 6 inches in length and affixes to a .30 caliber silencer that is partially hidden under the handguards. Despite the short barrel the weapon exceeds the accuracy of an MP5-SD.

The last time I saw this gun (or at least its parts) it was fresh off the rapid prototyping machine. The finished product looks fantastic, and I have no doubts that we’ll see something similar start to replace the aging MP5-SD.



Advanced Armament Corporation (AAC), Designed the .300 AAC Blackout in 2010 and released in 2011  it was designed to give a .30-caliber cartridge for the M4 platform.

The .300 AAC BLK cartridge was specifically developed for suppressor use

The subsonic 220-grain load offers better terminal ballistics over the traditional 9mm loads.

The .300 AAC Blackout also gives the user the option of using the 125-grain supersonic match ammunition for longer engagements, the 9mm round does not offer this option.

The Honey Badger was developed at the request of SOCOM to replace the HK MP5 and MP7 platforms for CQB and other low-profile operations.

The buffer system was shortened and the lower receiver was modified to accept the custom adjustable stock similar in design to the H&K MP5-SD.

The goal was to develop a PDW with increased lethality while maintaining the approximate dimensions and suppressed signature of the HK MP5SD.

The suppressed Honey Badger is as quiet to the ear as a MP5-SD.

There is a second version of the Multi-Purpose Weapon with a longer handguard that covers the suppressor. The longer handguard allows more space or lights, lasers and other rail attachments.






Q:How much energy are they getting out of that with a 6″ barrel and a subsonic round? What is the weight of the bullet they are using?

A: 220gr round traveling just over of 1000 fps for .300 AAC Blackout compared to a 147gr round which is just under 990fps for MP5-SD.


Caliber: 9 mm x 19 (9mm Luger)
Overall Length: 21.65”.
Barrel length: 5.74”.
Weight: 6.54 lbs. (unloaded)

Video Tuesday!!! AAC .300BLK

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I know this video has been out awhile and the .300 blackout isn’t anything “new” but still a cool video.


Kel-Tec RFB (Name that gun 10-10)

Kel-Tec RFB (Name that gun 10-10)


RFB stands for: Rifle, Forward-ejecting Bullpup

Designed: 2003
Manufacturer: Kel-Tec
Manufactured: 2008 – Present
Cartridge: 7.62NATO/.308
Action: Semi-automatic Gas-operating, tilting breechblock
Effective range: 800 – 1000M
Magazine: 10 or 20 round metric FAL detachable box magazines
Sights: None. A picatinny rail is attached  to the barrel. No iron sights are provided.

Variants: Carbine, Sporter, Target

8.1 lbs. (Carbine)
8.7 lbs.  (Sporter)
11.3 lbs. (Target)

26 in (660 mm) (Carbine)
32 in (812.8 mm) (Sporter)
40 in (1,016.0 mm) (Target)

Barrel length:
18 in (457.2 mm) (Carbine)
24 in (609.6 mm) (Sporter)
32 in (812.8 mm) (Target)

We wrote about the Kel-Tec KSG back in April and our view of the bullpup design still hasn’t changed about enjoying the bullpup design and concept, the idea of having a full length rifle in a small package without the loss of accuracy and range of a short barreled rifle.

The rifle has a different ejection system than any rifle I ever seen and is patented by Kel-tec as a forward ejection system. The spent shells are ejected through a tube over the barrel of the weapon and slowly push each round out using the round after or if the weapons barrel is tilted down they can just fall out. One of the major advantages to this system is when firing next to someone you are not shooting hot brass towards them.

The weapon system is fully ambidextrous.

The barrel is threaded to allow for flash suppressor or sound suppressor.

The weapon and be field stripped much like the AR-15 platform by using a live round to push out the 3 pins that holds this weapon together.

Welrod silenced pistol

Welrod silenced pistol


Action: Single Action manually operated bolt
Caliber: .32 ACP(Top) and 9×19 Luger (Bottom)
Weight unloaded: 2.4lbs – 3.3lbs
Overall Length: 12” (310mm) – 14” (360mm)
Magazine capacity: 6-8 rounds
Safety: A simple automated grip safety is provided at the rear of the magazine housing / grip base.

(Bolt open and magazine removed)

This pistol was designed as a bolt action to limit the noise made by the action.

The suppressor slows the supersonic 9mm round down to subsonic to reduce the noise, by doing this it dropped the pistols max effective range down to 75ft. 

The detachable single stack box magazine was wrapped in rubber and used as the pistols grip

The sound suppression was no more than 10-15 rounds, after which the shooter would have to remove and replace the baffles in the weapon. This was due to the rubber washers used in the suppressor would quickly deteriorate after 10- 15 shots making the sound suppression be less effective.

[Thanks to Kevin B for answering correctly]