Tag Archives: Bullpup

REVIEW: Kel-Tec Model RDB17

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“Low budget, high value bullpup” so says the author. If that’s what you’re looking for, read all about this one HERE

kel tec rdbkel tec rdb

Wilburn Roberts

The Kel-Tec RDB17 could be considered the working man’s bullpup: nothing fancy, but it sure performs. The RDB17 is a no frills bullpup that is very functional with a simplistic approach.

Features and Function
The RDB17 is constructed of two polymer halves that sandwich around a steel action and barrel. The gas piston system has a gas regulator so a user can regulate the weapon to run on all sorts of ammunition and also be adjusted for a suppressor. The gas regulator can be adjusted with the open mouth from an empty 5.56 NATO case. It’s click adjustable and comes from the factory ready to run on standard M193 type ammo.

The RDB17 features a left side charging handle that is non-reciprocating. It locks against the forend when not being used. The cooking handle provides good leverage when cocking the weapon with the support hand on the charging handle and firing hand on the grip.

kel tec rdb
The charging handle folds out and provides plenty of leverage to cock the RDB.

The outside texture of the polymer features a very coarse grid pattern that is comfortable and offers plenty of grip purchase. A picatinny rail at 12 and 6 o’clock allow mounting of and optic or vertical grip.

kel tec rdb
The ambidextrous safety selector on the RDB17 is located under the thumb of the firing hand and easy to manipulate. The simple magazine release is designed so a magazine can be stripped away with the support hand.

The controls include an ambidextrous rotating safety selector that is easily manipulated by the thumb of shooing hand like an AR15, but requires less rotation than the typical AR15 selector. The magazine release lever is also suited for left or right hand users. The lever is designed so the magazine can fall free as the operator grasps the magazine to remove it since the operator’s hand naturally falls on it. The simple metal magazine release is pressed to drop or strip away the magazine.

Field stripping the Kel-Tec is simple. Push out two pins and it disassembles similar to an AR15. Rotate the grip downward and the barrel and bolt carrier can be removed from the stock/grip assembly.

The RDB uses a unique downward ejecting system. As the bolt move rearward the extractor pulls the cases out of the chamber and into dual ejectors that push the case down a chute so empties fall at the shooter’s feet.

kel tec rdb
That slot aft of the magazine is the ejection port on the RDB17. It dumps empties straight down.

The Kel-Tec comes with a 20-round magazine and is also compatible with standard AR15 magazines, which I and I’m sure many others will appreciate. I used Brownells’ aluminum body magazines, Magpul Pmags, and Hexmag, all 30-rounders.

Firing
I tested the Kel-Tec with a SIG Romeo4B red dot sight which excels at close to medium range. At ranges out to 100 yards the dot suffices and while most red dots tend to cover a lot of target at far distances the Romeo4B allows the user to toggle between four different reticles: 2 MOA dot, 2 MOA dot with ballistic holds, 2 MOA/65 MOA Circle Dot, or 2 MOA/65 MOA Circle Dot with ballistic holds. The ballistic holdover points are calibrated for 5.56 NATO and 7.62x51mm NATO rounds. An activated motion sensor immediately powers up illumination when the red dot senses motion and powers down when it does not in order to extend battery life. A nice feature for those of you like me who forget to turn off the red dot and find it dead the nest time you use it.

kel tec rdb
The SIG Romeo4B red dot was well suited to the RDB.

Three brands of ammunition were used including Aguila 5.56mm NATO with a 62-grain FMJ bullet, .223 Rem. Federal Fusion loaded with a 62-grain soft point, and SIG Sauer .223 Rem. ammo loaded with a 77-grain OTM Match bullet.

At 25 yards using a rest I could create one large hole in the target. At 100 yards and using the same rest the accuracy ranged between 2.5 to 3 MOA. In speed testing, the RDB17 ran well with no malfunctions. The handguard incorporates a ridge so your support hand does not get too close the muzzle. Hot brass falls at your feet. The trigger was not as refined as I would like, but usable.

kel tec rdb

The Kel-Tec is a basic bullpup that in my opinion and it will get the job done. If you have a need to own a bullpup and have a limited budget this would be an excellent option.

kel tec rdb

See more HERE

REVIEW: Bond Arms Bullpup — A Great Carry 9

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This may be the most advanced 9mm handgun on the planet.  READ WHY

bond arms bullpup

Bob Campbell

When we look at a new firearm we like to know where it came from and what operating principles it is based on. The Bond Arms Bullpup is a result of Bond Arms purchasing the rights and machinery to the Boberg pistol. Before that there isn’t a lot owed to anyone for this design. The pistol uses the proven locked breech short recoil principle but with a twist — literally. The pistol features a rotating barrel. A rotating barrel lessens the need for a heavy recoil spring and guide while controlling recoil. This is important in a very small 9mm handgun. Recoil energy is expended over a longer period of time. The barrel rotates 14 degrees during the recoil cycle as the slide unlocks and shoots to the rear. The recoil spring is pretty light, with its main function moving the slide back into battery after the spent cartridge case is ejected. As a result of this design the slide is very easy to rack. Easier than any other 9mm I am aware of.

bond arms bullpup
The mechanism is complicated but works well.

At first glance the pistol appears to have a very short barrel, when you realize the barrel takes up a lot of the slide. The 5.1 inch slide contains a 3.35 inch barrel. This means that the average velocity loss compared to a Glock 19 as an example is less than 40 fps average. That’s impressive and necessary as well as the 9mm demands good velocity to ensure bullet expansion. The Bullpup moniker comes from the pistol’s unique design. The magazine is loaded conventionally but the front of the magazine is closed and the rear open as the cartridge feeds from the rear. A dual tongued drawbar catches the cartridge case rim and pulls it from the magazine and feed it into the chamber. This is controlled feed at its nth degree. The cartridges must be carefully selected. The problem isn’t a blunt nose but cartridge integrity. A firm crimp is demanded. With this in mind, the company supplied a list of cartridges they have tested and which offer feed reliability. Included are inexpensive training loads and top notch defensive loads.

bond arms bullpup
Good sights are essential for combat accuracy.

I am particularly impressed with the grip design. The supplied wooden stocks are attractive and offer good abrasion and adhesion. The stocks are wide enough to soak up recoil and remain slim and trim for concealed carry. The sights are good examples of combat sights. As for improvements over the original pistol the primary improvement is in fit and finish. The Bond Arms Bullpup is as well made as any handgun. It isn’t inexpensive but it is innovative and it works as designed. A big reason the new pistol isn’t as finicky as the original — and the Roberg ran fine with good ammunition and proper lubrication — is that the reciprocating barrel and barrel block now feature a frictionless space age coating. This eliminates the need to keep the barrel and locking block coated. The take-down is the same as the original using a lever to remove the slide. This lever may be turned to the six-o’clock position in order to lock the slide to the rear. The slide does not lock open on the last shot, it simply isn’t practical with the Bullpup design. Be aware during combat practice of how the pistol behaves. Get a rhythm going and perhaps try to count the shots and practice tactical loads.

bond arms bullpup
Firing the pistol is a joy- this is a light recoiling and accurate piece.

When firing the Bullpup 9 I had a pleasant surprise. This is a very nice pistol to fire. It isn’t the lightest 9mm at about 22 ounces but recoil is decidedly light. The trigger action is very smooth. The Lyman digital scale measures 7 to 7.5 pounds on average. Press the trigger straight to the rear until it breaks cleanly and you have a good hit. During recoil allow the trigger to reset. The result is good control and surprisingly good combat accuracy. Most of the ammunition fired has been the recommended Winchester 115 grain FMJ, as well as Sig Sauer Elite 115 and 124 grain FMJ. The pistol is also reliable with modern expanding bullet loads including the Hornady Critical Defense and Critical duty and the SIG Sauer Elite V Crown loadings. Accuracy is exceptional for this size handgun. The pistol will exhibit a five shot 1.5 inch group with most loads at 15 yards, firing from a solid benchrest firing position. Of course this doesn’t have much to do with combat shooting.

Firing offhand it isn’t difficult to keep a full magazine in the X-ring well past 10 yards. I executed the 10 10 10 drill — modifying it to 10 10 7. Ten yards, ten seconds, and seven shots. The pistol stayed in the 8 and 9 ring. This is good performance. The pistol demands attention to detail, both in maintenance and in handling. The Bond Arms Bullpup comes with a hefty list of advantages foremost of which is its small size. Yet the pistol retains a full length, for a compact, pistol barrel and offers light recoil and excellent accuracy. This isn’t a handgun for the slightly interested. For the demanding shooter it is a top notch piece.

bond arms bullpup
This is a group fired from a solid rest at 15 yards.

Among a very few concealed carry holster makers offering a suitable concealed carry rig for the Bond Arms Bullpup 9 is Alien Gear. The soft backing coupled with a rigid Kydex holster makes for good comfort and a sharp draw. There isn’t another holster offering a better balance of speed, retention and comfort along with real concealment.

bond arms bullpup
The pistol carries well in this Alien Gear holster.

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