The GSG FireFly features a wear-resistant alloy frame outfitted with an integrated accessory rail. The slide features adjustable sights, and along with the rugged blowback system, fixed barrel and superior ergonomic grip, the GSG FireFly delivers exceptional accuracy. Additional safeties include an internal locking device and slide mounted ambidextrous safety.
Some of you know this pistol by it’s other name, the Sig Mosquito, yes, the same gun.
We offer adapters so you can use the pistol with standard 1/2″ thread devices such as the faux suppressors we sell which you can see here on green version of the pistol
GSG Firefly shown with optional thread adapter and faux suppressor
The thread adapter and faux suppressor combo sell for $55, both parts can be purchased separately.
PSA Gen 4 10’5″ with a 9″ M-LOK railed upper sitting on a PX-9 Glock MOE EPT Adjustable Brace SBA3 lower and ETS 31rd magazine
The 10.5″ barrel length is optimum for this caliber giving the powder sufficient time to burn and give you a higher velocity than shorter barrels.
Barrel: 10.5″ chrome moly steel barrel. Chambered in 9mm, (9×19), with a 1/10 twist. The barrel is nitride treated for durability and finished off with a Palmetto State Armory 9″ Lightweight M-LOK free-float rail and a 9mm birdcage flash hider.
Upper: Billet 7075-T6 A3 AR upper is hard coat anodized black for durability.
Bolt Carrier Group: Gen 4 Hybrid 9mm BCG. Nitride treated 8620 steel, with enhanced firing pin and external 5.56 style extractor.
9mm Forged Complete MOE EPT SBA3 Lower designed to use Glock®-style magazines
Machined from 7075 T6 forgings and then hard coat anodized, these lowers are purpose built to accept 9mm Glock®-style magazines. Designed to work with the Palmetto State Armory PA-9 9mm upper. The lower is assembled with a Palmetto State Armory MOE Enhanced Polished Trigger SBA3.
ETS 31rd Glock magazine included!
Don’t wait for internet handling and shipping time, buy here, buy NOW 🙂
When selling pistols, carbines, and rifles using the AR DI gas system, I always stress getting the longest gas system you can for the barrel you are using. This is why I primarily sell 16″ carbine systems with a mid-length gas system, and I suggest pistol buyers stick with the 10.5″ versions as they can use a carbine-length gas system. The article below gives you the facts behind the suggestion.
The gas port and tube that causes the bolt to cycle. These parts, from the gas port drilled in the barrel, through the gas block, tube, and the gas key in the bolt carrier, collectively make up the gas system. With a few (piston-driven or single-shot) exceptions that we won’t discuss here, pretty much all ARs cycle this way.
What changes, though, is the location of the gas port along the barrel. The gas port MUST be located far enough from the muzzle that the pressure has time to kick the bolt carrier back before the bullet exits about 1/4000th of a second later. That demands that the gas port be a certain size, and a certain distance from the muzzle — which actually varies, because pressures change as you go further from the chamber.
So shorter barrels need a shorter gas tube, and with the gas port closer to the chamber, the pressures are higher.
Not just a little higher, either. Dramatically higher.
Look at the chart below:
Gas System
Gas Port Location
Pressure (PSI)
Pistol
4.7″
48,300
Carbine
7.8″
33,000
Mid-Length
9.8″
26,500
Rifle
13.2″
19,600
This means the shorter your gas system is, the higher the pressures it’s subjected to. The bolt and carrier are slammed harder; they work harder, and the whole system becomes far more sensitive to anything that’s not perfect.
In addition, a shorter gas system is inevitably harsher in operation, because it has to cycle in a shorter time.
The original design was the rifle length system, and that’s what the gas system is designed around. At rifle length, an aluminum gas block is fine, which keeps weight down. But with the carbine length, the pressures are almost twice as high, and an aluminum gas block will eventually be eroded by the hot gas charges.
If you’re using a carbine length gas system, or even a mid-length, a steel gas block is recommended.
Also, as the gas systems get shorter, the size of the gas port increases, because they need to bleed off a lot of pressure in a shorter time. If the gas port is too small, the rifle will short-stroke, probably resulting in failures to feed. The port can be drilled larger, but this should be done by a qualified gunsmith, or you risk ruining the barrel.
On the other hand, if the port is too big, the rifle will be “overgassed.” That can send the gas impulse to the bolt too early, while the shell is still locked into the chamber by pressure, and cause it to fail to eject. At the very least, an overgassed rifle will be harsh to shoot. This can be addressed with an adjustable gas block, which lets you control how much gas bleeds through, allowing you to find the point where it cycles reliably.
For what it’s worth, most 14.5″ and 16″ barrels are set up for carbine gas systems, though you can find 16″ barrels with mid-length systems. The mid-length system (not an official standard, by the way, but an industry standard nonetheless) is commonly found on 18″ barrels, but they can be had with rifle length systems. And rifle length gas systems are standard on 20″ and longer barrels, and there’s NO reason to ever want to go shorter. In general, the longer your gas system is, the smoother and more reliably it’ll operate – though you do need a certain minimum dwell time after the bullet passes the gas port.
Barrel: 10.5″ 4150V Chrome Moly vanadium steel, melonite treated for durability and chambered in 5.56 NATO with a 1 in 7″ twist. Carbine length gas barrel is finished off with a PSA 12″ Slant End M-lok Rail, a low profile gas block and a Fluted Flash Can.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish.
Flash Can: This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-28 for 5.56 NATO. Black mil-spec hard anodizing.This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon’s appearance.
PSA 10.5″ 5.56 NATO 1/7″ Carbine-Length Phosphate Upper
10.5″ 5.56 NATO 1/7″ PHOSPHATE UPPER $179
Barrel: Phosphate coated chrome moly vanadium barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. Barrel is is finished off with a classic carbine-length handguard, F-Marked gas sight base, and A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish.
10.5″ 5.56 NATO 1/7 PHOSPHATE 9″ LIGHTWEIGHT M-LOK UPPER
10.5″ 5.56 NATO 1/7 PHOSPHATE 9″ LIGHTWEIGHT M-LOK UPPER $219
Barrel: 10.5″ 4150V Chrome moly vanadium steel barrel, phosphate coated and chambered in 5.56 NATO with a 1 in 7″ twist. This carbine-length** gas barrel is finished off with a PSA 9″ Lightweight M-Lok Rail, a low profile gas block, and an A2 style flash hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.
** carbine-length vs. pistol length gas system is about a 2X difference in pressure which equals recoil and force applied to firearm internals
8.5″ PISTOL-LENGTH 5.56 1/7 NITRIDE 10.5″ M-LOK UPPER Can
Barrel: 8.5″ 4150V Chrome Moly vanadium steel, melonite treated for durability and chambered in 5.56 NATO with a 1 in 7″ twist. Pistol-length gas barrel is finished off with a PSA 10.5″ Lightweight M-Lok Rail, a low profile gas block and a PSA Fluted Flash Can.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish.
Flash Can: Fluted “FLASH CAN”. This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-28 for 5.56 NATO. Black military-style hard anodizing. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon’s appearance.
Barrel: 7″ 4150V Chrome Moly vanadium steel, nitride treated for durability and chambered in 5.56 NATO with a 1 in 7″ twist. Pistol length gas barrel is finished off with a Magpul MOE M-Lok carbine length handguard, a low profile gas block and a patent pending PSA muzzle device
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability.
**Uppers Do Not Include BCG or Charging Handle which we sell separately
All PSA products carry a lifetime guarantee so buy with that assurance!
Check out this premium AR-15 with a custom lower. Pick a lower and put it with this kit.
Gas System: Mid-Length
Enhanced Polished Trigger Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 7″
Barrel Extension: M4
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Hand guard Type: Magpul MOEM-LOK Black Handguards
Bolt Carrier Profile: Full Auto
Rear Sight: Magpul MBUS Rear Flip-Up Sight
Magpul 30rd P-MAG Magazine included (not one pictured)
Please note this is an upper end carbine with a mid-length gas system which means less felt recoil, less damage to bolt and receiver equals longer life.
What makes this custom, is you get to choose your lower, and we have several cool limited edition options!
Pick a Grim Reaper, or an Eagle.
If you want a plain lower, take $10 off. This sale is for a kit. The upper is assembled, and only needs to be pinned to the lower kit which includes your choice of lower. After the sale, you can assemble the lower kit yourself or arrange to get it done.
Gen3 Space Cannon PA10 Forged Complete MOE EPT 308 Lower With Over molded Grip
This is the new Gen3 PA-10 from Palmetto but this one is the extra special, limited edition SPACE CANNON version. No longer available from PSA, buy it here!
Gen 3 Relief Cuts to Accommodate a Wide Range of Aftermarket BCG’s
Forged 7075-T6 Aluminum
Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2
Mil-spec Diameter PA15 6-Position Receiver Extension
Palmetto State Armory Enhanced Polished Trigger (EPT) (made by Schmid)
Palmetto State Armory Over-Molded A2 Grip, Black
Magpul MOE Stock, Black
Twice Staked M4 Lock Nut
PA10 Short Buffer & PA10 Buffer Spring
Caliber: .308
These are surplus ammo cans straight from the White Sands Missile Range here in New Mexico. From the designation on the can, you can see that these cans originally contained standard M80 ball cartridges in M13 linked belts. The can would have contained two 100-round belts in cartons inside of the can.
Model M19A1
Dimensions: 10″ x 6.5″ x 3.5″
Steel ammunition chest
Rubber seal
Lay flat carrying handle
Hinged lid
Latch closure (can be locked with additional parts)
These cans are in very good condition and the seals on them are in excellent condition. The ammo in these cans would have been recently shot such that the cans are still in near mint condition. These can be used for ammo storage or any other items you wish to store in an air, humidity, and water-tight manner. You can depend on the can and seal to last many years.
The cans are available for sale at our store in Rio Rancho and for those on the south end of town, in Belen. They are reasonably priced at $10.00 each, tax included.
These cans are generally known as .30 cal cans as they were originally designed to hold belts of .30 caliber machine gun bullets.
The 7.62X51mm NATO round was developed in the 1950s for the M14 rifle and the M60 machine gun. Since these cartridges were on linked belts that means they were intended for machine gun use, not rifle use. Very few of these are used in rifles any longer as the M14 rifle was superseded by the M16 which used the 5.56X45 NATO round. However the 7.62mm round known in the civilian world as the .308 Winchester is still used in sniper rifles and for other special purposes in addition to machine gun use.
It was discovered in Vietnam that the M14 rifle was too long and heavy for jungle warfare and the size and weight of the cartridges limited the number of rounds that could be carried. The commies had the same issue with their AK-47 ammo but they never wised up and still carry the bigger, heavier cartridges. This chart helps show the comparison in what a soldier could carry:
Rifle
Cartridge
Cartridge weight
Weight of loaded magazine
10 kg (22#) ammo load
M14
7.62×51mm
393 grains (25.5 g)
20 rds @ 0.68 kg
14 mags / 280 rds
M16
5.56×45mm
183 grains (11.9 g)
20 rds @ 0.3 kg
33 mags / 660 rds
AK-47
7.62×39mm
281 grains (18.2 g)
30 rds @ 1.2 kg*
8 mags / 240 rds
(*AK-47 magazines are much heavier than M14 and M16 magazines)
The 7.62X51mm cartridge remained the main machine gun round well in to the 1990s but for light machine gun use, has been replaced by the 5.56X45 NATO round in widespread use of the M249 SAW. The 7.62 is still used in the M60E4, the M240 and by the Germans in their HK21 and MG3.
We just got in some 40mm cans into stock at our Belen location. They are selling for $20 each
Are you putting together an AR or would like an M-LOK rail, or your old AR needs an upgrade. Either way, grab this upper and start shooting!
Barrel: 16″ 416R Stainless steel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. Pencil profile barrel is finished off with PSA 13.5″ Precision M-lok rail, .625″ diameter low-profile gas block, and A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized.
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