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1/2x28
The Osprey GP2 Osprey, also known as the Air Skimmer, Sea Skimmer, or Pereira GP2 Osprey, was a single-seat flying boat designed by Eut Tileston under contract to George Pereira, a private builder. After the release of Pereira's amphibious Osprey II some years later, this aircraft became known retrospectively as the Osprey I. The original plane was designed to be water launched only. Initial test flights were performed in the Sacramento Delta. A single example was evaluated by the United States Navy as the X-28. Pereira formed Osprey Aircraft to market the plans to homebuilders, including plans for a trailer that allows the pilot to launch and recover the aircraft single-handed. These plans are still marketed by Osprey Aircraft as of March 2017.The Navy became interested in the project through a Naval Air Development Center study into patrol missions in Southeast Asia. The study required that the aircraft be capable of flight under visual flight rules (VFR), be lightweight, cost less than 5,000 US dollars, and be able to be manufactured in Southeast Asia. After examining Pereira's Osprey in 1971, the Navy purchased the aircraft and commenced testing it as the X-28A in the fall of that year. Although the Osprey met most of the requirements of the program, the program itself was cancelled without any further military examples produced. The sole X-28 is now on display in the Kalamazoo Aviation History Museum.
Awesome muzzle brake for any 223/5.56 firearm with a 1/2x28 threaded barrel (the standard AR-15 thread).
This well known brake is top of the line for keeping recoil and muzzle rise a minimum.
Retails for $140.
Selling for $70 SHIPPED.
Came on a rifle, switched out for a flash hider that works with my suppressor. Appears to never had had a suppressor mounted on it. Would like $50 or trade for a 1/2x28 keymo muzzle device or 5.56 ammo. Thanks!
Used only twice, in very good condition, see pictures. This was part of an SBR build that I have recently reconfigured as a Commando.
$25 Cash, Paypal Friends and Family, VenMo, or CashApp.
Free ship in the Pacific Northwest by USPS First Class. In person only M-F 7am-2pm at my company in...
Ruger 10/22
Ruger Receiver
Ruger Bolt and CH
Ruger plastic (non BX) trigger pack
Magpul stock OD Green
Pike Arms 16.5” heavy fluted barrel. Threaded 1/2x28 with matching thread protector. Polished blue. Color variations look almost chameleon and match the OD scheme very nicely. 1-16” twist...
new Dead Air 1/2x28 flash hiders
$89 per unit BOTH SOLD PENDING FUNDS
I accept cash and PayPal F&F and can ship USPS if needed.
Manufacturer specs:
https://deadairsilencers.com/product/flash-hider-3/
Used, good condition. Just gave it a good cleaning. Will come with some shims. $12
This has the socom QD mount capability for suppressors/wardens
Open to trades for a SF3P in 1/2x28 or 762 5/8x24
Or partial trade for a HK usp 9 tactical
Meet in lake Oswego by Whole Foods downtown or I’ll...
Selling a SilencerCo MAAD Flash Hider mount for the older Saker silencers, threaded 1/2x28. Lightly used, but in great condition. As far as I can tell, these are no longer made or sold. Asking $50 OBO. Prefer face-to-face in the Portland Metro area.
Cherry bomb is used but works as it should! $55
Sling is used but in great used condition! $75
CAM LOK Barrel Adapter is NIB $50
Package deals for sure, will ship or meet in lake Oswego.
Used to mount my suppressor on an AR for about a year but my 556sd is off getting converted to keymo mounts. Teeth are in probably 95 percent shape and locked up very tight with my suppressor. Asking $60 or trade for a 1/2x28 keymo flash hider (dead air, fcd). Prefer to meet in...
Hi, up for sale an wonderful 9mm pistol compensator from Tryant Designs. This particular one was mounted on a gun, but never shot through and includes all original box, Orings and tool. 2 piece design allows for adjustments and mounting within seconds on any 1/2 x 28 threaded barrel.
Please...
Apparently AAC is still in limbo on so many fronts, I could not order a 51T muzzle device from my LGS. I've been scouring online and everywhere they say the devices are discontinued. Maybe someone here can find a source.
Like new condition Glock 44 chambered in 22LR. Purchased new 1 month ago. Package includes a Glock OEM threaded barrel in addition to the factory non-threaded barrel. Comes with all the factory goodies as shown. Face to face cash transaction at Extreme Products in Clackamas. Buyer...