Discrete Automatic -- A Handgun Design

[dwightlooi]

I did this two years ago as part of a project that was stillborn. It is 100% my IP and I am sharing it for all to enjoy and critique.

The concept is one of a concealable handgun with the following key features:-

• 10-round 40 S&W double stack magazine
• Magazine is nearly vertical and the breech is set as far rearwards as possible allowing for longest barrel length
• Striker fired Single-Action-Only mechanism with front strap safety*
• Front Strap Safety also doubles as slide release
• All metal construction -- Steel Slide / Aluminum Frame
• Tilting Barrel Lockup for wide range of cambering compatibility
• V-notch laternal indexing (zero play) for accuracy
• Semi-recessed slide and rear facing load chamber indicator for snag free concealment
• Dimensions based off of the HK P7M8

* The striker is fully cocked when the slide is cycled and always stay fully cocked. The front strap safety operates a firing pin block, a sear block and a trigger disconnect. Mechanically, the trigger can be set as low as 1.5~2 pounds in weight and about 1.5mm (1/25-inch) in travel, although for practical purposes it is set higher. There is no re-strike capability.

In short, you can think of it as a single action only, tiling barrel lockup and slimmer version of the HK P7M13.

[afteractionreport]

Hey cool concept...

[WASR10]

I like the chamber loaded indicator. If you have to have one, that's a good place to put it

[DisgruntledReaper]

Looks a lot like a HK P7 M8 with the front squeeze cocker .....

[Varg Vikernes]

Yea it is screaming P7 to me.

[Stanze]

HK P7M10

http://www.hkpro.com/index.php?option=com_content&view=article&id=63:p7m10&catid=6:the-pistols&Itemid=5

[Citadelgrad87]

Yeah, other than they didn't have .40 at the time , how is this different than a P7m13/10

[dwightlooi]

It is based on the P7 ergonomics... however it corrects a few flaws of the P7.

(1) It is not gas retarded. This means that it can handle the 40 or the 45 or the 357 sig without having a ridiculously heavy slide (P7M10) or an oil buffer (P7M7) because the opposed piston delay is simply inadequate above 9mm recoil levels.

(2) Because it is not gas retarded, it wouldn't heat up the area above the trigger finger to fry pan temperatures after a half dozen mags.

(3) It is not a squeeze cocker but a single action pistol with a front strap acting as a safety. With the firing pin blocked, the sear blocked and the trigger disconnected it is just as safe despite being fully cocked all the time. You lose re-strike capability, but you should rack and eject instead of re-striking a dead primer anyway. And, because it is single action only you can have a short and light single action pull. Finally, because it is not a squeeze cocker, the front strap mechanism is a lot simpler and a lot lighter.

[Ribkick]

Meh, I'll keep my P7M8 and love the function. The P7 series was not designed to be a competition pistol. Firing multiple magazines. Nobody bought this pistol to compete with constant mag changes.

Nice ideas and an interesting twist on the concept but it will go nowhere because there is no need to fill. BTW, one of the features of the P7 series IS a consistent single action trigger from the first shot to the last.

[stix213]

I like it

[Ribkick]

Do you mind if I copy and paste your OP over at the HK PRO forum? Or have you already? I'd like to read their opinions.

http://www.hkpro.com/forum/hk-handgun-talk/

[Libtard]

Discrete Automatic -- A Handgun Design

How about if you integrate a laser, and that big safety can activate it? Better yet, a switch can configure the behavior of the switch: Laser On, Off, or Pulse on Fire(target practice)?
There's usually room in the grip, behind the
magazine well, which can hold the batteries.

[Ribkick]

How about if you integrate a laser, and that big safety can activate it? Better yet, a switch can configure the behavior of the switch: Laser On, Off, or Pulse on Fire(target practice)?
There's usually room in the grip, behind the
magazine well, which can hold the batteries.

You're thinking Glock. No such room in most and none in a P7 design unless designed in which is unlikely due to design.

[Icypu]

Why would the integrated grip safety also release the slide? That means when you eject your mag, your slide will either slam forward when the mag leaves, or when you insert the new mag your slide will release.

Sounds kind of tricky either way, and I wouldn't buy a gun that had that all together. Reminds me of the M&P I rented at a range once, it would always release the slide when I put a mag inside.

[Marinos]

I like all of it except the front strap squeeze safety trigger. Take that out or move it to the rear like a traditional setup with a slide lock. That would fix the ugly and allow for accurate fast shooting from a draw. That safety strap looks like a big problem area to me.