Tactical Parts x Airsoft Tech Talk

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Tactical Parts x Airsoft Tech Talk

A page dedicated to teaching Ai***ft replica mechanics and promoting the spread of knowledge and confidence in the field of airsmithing.

Brought to you by tacticalparts.com. For awesome custom built AEG's and Ai***ft repair and upgrade services, be sure to check out the website! https://tacticalparts.com

10/20/2026

Finger bang
Bang bang
Finger bang
Bang bang bang

10/09/2026

One of this weeks finished builds was this PTS Centurion Arms CM4 which had the top end restyled with a KWA SR7 carbine rail and PTS Dead Air Sandman L mock suppressor.

10/08/2026

Still one of my favorite non-railed setups. Been cranking out a few of these lately!

09/29/2026

I sometimes use buildings to brake check my momentum 😅

Photos courtesy of Brian Neale.

09/22/2026

I stopped at a (literal) junk sale the other day and spotted this beautiful magnifier clamped to a grimy shelf. Despite the heavy layer of dust, for a $20 bill I knew it was a good deal. I've been on the lookout for a good replacement after my Amazon special crapped the bed. After giving it a good cleaning, this turned out to be a vintage US made 1980's Donegan Optical magnifier, which is from the last of their industrial-grade options before everything shifted to plastic fixtures and cheaper acrylic lenses. These are crafted from a heavy-duty stainless steel flex-shaft, with brass internals, a cast-iron table clamp, and sporting a near-perfect glass magnifying lens. These are like heirloom tools, and to get equivalent quality today would cost many hundreds of dollars now.

09/11/2026

I could have a total side hustle just removing AMS stickers alone.

09/01/2026

I took a weekend for myself to give the PKM it's full overhaul recently. The foundation for this was swapping in a Bullgear CNC gearbox to replace the very problematic Retro Arms gearbox that was in there previously. With the exception of having to cut down an SR25 length cylinder and turning down the diameter of the hopup chamber inlet slightly, this went together almost too easily. I could maybe stuff in a heavier spring to bring it fully into LMG limits, but this beast isn't really lacking for ability to cull the mutant child soldier hordes 😅

Externals:

- A&K PKM / heavily modded
- Arcturus DTK muzzle brake
- Zenitco RK-2 grip w/Zenitco B-25U 45 degree adapter
- Grovetech QD socket
- Inert 7.62x54R belt
- Aimpoint PRO
- Magpul K2 AK pistol grip
- PTS Unity FAST riser
- Fortis QD socket
- SIG collapsible stock
- Spooky Solutions KLMK pattern sling

Internals:

- Lambda 6.05 SUS304 303mm inner barrel
- Ai***ft Mutation LC bucking
- MAXX squishy orange nub
- EMG CNC hop up chamber
- SHS 20.70mm CNC air nozzle
- Guarder tappet plate (modded)
- Modify double O-ring cylinder head
- CYMA stainless Ver. 2.5 cylinder
- Ai***ft Mutation MK3 piston & Piston head
- Rocket 18.65:1 gears, SS 2T
- Retro Arms delayer (modded)
- ASG anti-reversal latch
- FLT 9mm bushings
- Guarder SP120 spring
- Warhead Base V2 31K brushless motor
- Bullgear CNC gearbox shell
- Retro Arms CNC spring guide
- Retro Arms CNC spring guide latch
- 16 AWG Alphawire Ecowire
- Bullgear PKM box magazine insert
- Joules: 1.55J w/.32g's
- ROF: 25 RPS w/11.1v
- Weight: 5.48kg / 12.10 lbs.
- Length: 838.2 / 33 in.
- Length (folded): 66.75mm / 26.25 in.

08/27/2026

turned me onto these Specna Arms rotary AK chambers a few games ago, so I brought in a handful to test out myself. I've since installed one into every AK I own and am happy to report that they work fantastic in LCT's with excellent accuracy results. The design itself is far superior to LCT's extremely problematic rotary chamber and it drops straight in without mods. Best of all, it works flawlessly with both the LCT factory air nozzle as well as the Retro Arms 19.50mm nozzles too. It also has no issues with the magwell spacer either. So with all that being said, I am confident in saying that I will be using these as standard in all future LCT builds forward!

08/12/2026

After sorta reaching a dead end with HAO and their unwillingness to take measurements, I started looking into other rail options for the KWA HK416A5. My customer mentioned he had a VFC 416 MLOK rail kicking around and so told him to send it over and I'll see if I can't make it fit.

The 416's barrel nut is too large in diameter to fit into the rail, however with a lathe you could just turn it down and make it work and just refinish it afterwards. I found this random Geissele MK8 barrel nut that had the right diameter and threads (32P x 1.5). I just had to shorten it up to match the length of the KWA barrel nut and cut in a groove so the clamp would clear. This worked perfectly and the rail clamps on rock solid.

The MLOK rail really transforms the feel of the front end. The stock quad rail weighs 1 lbs 2 oz., while this MLOK rail comes in at a much lighter 8 oz, for a total reduction of 10 oz. off the front. You could actually shave an additional 12 oz. off by swapping back to the KWA 416 barrel, which is made from aluminum. And even a little more if you converted an aluminum barrel nut vs. steel. That being said, the steel Z-Parts barrel is rigid AF and the balance feels rather good now; with the center of balance being right at the front of the trigger guard. But also, quad rails just suck the joy out of everything IMO 😅

08/10/2026

Keeping it cool with the Wetwrx Summer Combat Hoody.

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