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Prototype Stiller Mk13 receivers

Here's something that's never been discussed on the forums, and I thought that it's a topic that warrants it's own thread (as opposed to being posted in the big Mk13 thread). Recently, a small group of 8 or 9 original prototype/sample Stiller Mk13 receivers popped up in the collector market and were sold. I have 2 of them in my possession, but only one of them is mine (serial number 3), the other receiver belongs to my brother (serial number 12). Collectors were limited to purchasing just 1 receiver, not multiples, in order to keep things fair.

When Crane put out a solicitation for the Mk13 receivers, Stiller made 25 of them according to Crane's specifications. The 8 or 9 receivers that recently hit the collectors market were from this original batch of 25 receivers. These Stiller Mk13 receivers are considered to be prototypes and/or sample pieces for Crane, and were never issued.

Stiller based these prototype Mk13 receivers off their Tac 300 receivers, but the 2 types of receivers have some differences. The biggest difference between a Mk13 receiver and Tac 300 receiver is the lack of the flat left side on the Mk13 receiver. This is because Crane specifically requested round receivers for their Mk13 program. Stiller assumed that the entire receiver should be round, even though Crane was only referring to the bottom of the receiver (such as a round bottom Remington 700 receiver compared to a flat bottom Winchester Model 70 receiver), so Stiller didn't cut the flat into the left side of the receiver like the Tac 300 has.

The armorers from Crane inspected these 25 prototype Stiller Mk13 receivers and liked what they saw, but they did request a few changes to the receivers. Here's a list of changes that Crane requested Stiller to make:

● Remove the "C" serial number suffix (the "C" suffix stood for "Crane")
● Remove the space between the "MKA" serial number prefix and the rest of the serial number
● Add one more digit to the number portion of the serial number (4 digits to 5 digits)
● Move the engraved serial number from the left side of the receiver to the right side of the receiver
● Remove the gas vent hole from the receiver
● Add an RFID tag to the left side of the receiver that has a 2D barcode, Stiller manufacturer cage code, Mk13 receiver part number, and Mk13 receiver serial number

There's also another for differences between the 25 Mk13 prototype receivers and the issued Mk13 receivers, but I highly doubt that these were changes that were requested by Crane. I think that these are just things that Stiller did on their own, for whatever reason. These are just some things I've noticed when comparing the prototype Stiler Mk13 receivers to the issued Stiller Mk13 receivers:

● The prototype receivers don't have commas in the FFL markings, the issued receivers do have the commas in the FFL markings
● The prototype receivers have a slightly thicker outline to the "MK13 300WM" markings than the issued receivers (bold text vs regular text)
● The prototype receivers have a slightly different letter font and size to the "MK13 300WM" markings than the issued receivers (this can really be seen when comparing the "W" and "M" letters on the receivers)
● The prototype receivers have a slightly different letter font and size to the "SPF LLC WYLIE TX" markings than the issued receivers (this can really be seen when comparing the "W" letters on the receivers)
● The prototype receivers have a shiny finish bolt shroud and bolt knob, the issued receivers have a matte finish bolt shroud and bolt knob

The 25 prototype Stiller Mk13 receivers were never built by Crane or issued to any military unit. The owner of Stiller might have kept some of these 25 prototype Mk13 receivers for his personal collection or for the company's records, and he might have sold and/or given away some of these prototype Mk13 receivers to employees and friends. I have no idea who had these 8 or 9 prototype Stiller Mk13 receivers that were just sold to collectors, or if there's any other prototype Mk13 receivers out there. I assume that none of the 25 original prototype Stiller Mk13 receivers were destroyed, so they have to be somewhere. However, myself and other big Mk13 collectors had absolutely no idea that these prototype receivers even existed before these receivers popped up for sale. I assume that these receivers are also unknown to just about everyone on this forum, so this thread should have some interesting information for the collector community.

Well, that's enough typing, here's a bunch of photos of the prototype Stiller Mk13 receivers for you all to enjoy. I also took a few photos of my other 2 Stiller Wylie Mk13 receivers (build into Mk13 Mod 5 and Mod 7 rifles) so that the differences between the prototype receivers and the issued receivers can easily be seen:

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Accessories Savage 3.850 MDT LSS XL Gen 2 with SRS lite fixed

Savage 3.850 CIP MDT LSS XL Gen 2 in FDE takeoff from my 338 Lapua. Comes with the SRS lite fixed stock. I put thumb screws on for the cheek riser, otherwise untouched. I do have the grip floating around somewhere. About 50 rounds through the gun with the chassis otherwise it's just been sitting in my gun room. Asking 700 shipped.
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SOLD Nightforce ATACR 7-35 FDE Mil-XT Reticle Like New $2850

Selling a practically brand new Nightforce ATACR 7-35 Flat Dark Earth scope with Mil-XT reticle. Includes everything as it would new (sunshade, mag ring post and windage ring. Only selling because the FDE isn’t really my thing.

$2850 shipping included. PayPal FF, Venmo and Zelle accepted.

No trades.

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SOLD Knights Armament FF RAS Long PN 99167 Mk12 mod 1

Up for sale is an old part number KAC FF RAS long, used on MK12 mod 1, as well as multiple other mil rifles. The 99167 is the "correct" period rail for most builds, unlike the new 21318. These don't pop up often, and when they do they are gone quick.

Comes as seen, will include 3x 11 rib KAC rail panels.

$1000 Shipped UPS
Paypal F&F, Venmo F&F


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SOLD Remington 700 Short Action 308 BF and Manners PRS-TCS Chassis w/ Sikes Clutch

700 action with 308 BF - Sold

Manners Chassis for Remington short action and clones. Comes with Sikes clutch. - $1250 shipped

Take both for $1600 shipped.

Venmo

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SOLD [WTS] Razor 1-10, Hardline 3-12, 1.93 34mm Badger Mount, 30mm ADM Mount, Acro P2, FDE Warden, 7.62 SF MD, LWRC Trigger

Timestamp: Login to view embedded media
Serials: Login to view embedded media
Looking to part ways with some spare items. Open to trading!

Razor 1-10 MRAD with Wager Cap - $1650

Badger 34mm 1.93 with j-arm - $250

Acro P2 - $475

Badger Acro Mount - $40

Bundle - $2400 or trade for 6-36 razor MRAD with mount/rings.

Crimson Trace Hardline 3-12 mil in Leupold rings (I think) - $350 or trade for area 419 mount

ADM 30mm 1.93”- $170

Badger Micro T (also fits 4xt) - $40

Direct Thread 556 SF Warden - $110

7.62 SF Warcomp - $105

LWRC Trigger - $50

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Didnt vote in 2020? Check if you really did! FRAUD story

Was at the DMV friday, Elkhorn WI. took my number and went and sat down. I sat next to a table in back (6ft away) where an elderly lady was asking people if they are registered to vote and then with a computer there helping them register. A guy walks up, maybe in his 60s, says he moved to a different town, and now moved back to Whitewater so he needs to register to vote. He started telling the lady that he did not vote in the 2020 election and when he went online and looked himself up, it said the last time he voted was 2020 and voted absentee (by mail) , man was confused and irritated. Said he had to look up what "absentee" meant. The lady set him up on the computer to register.... when he logged in.. he said "look... right there it says last time I voted was 2020 by absentee". He also said his wife did not vote in 2020 and it also said the last time she voted was 2020 absentee. He was asking the elderly woman what can be done about it and who he voted for as the website will not tell you who you voted for. He explained to her he told a colleague at work and the person laughed and said he was full of it. The colleague also did not vote in 2020 and the man told him to look it up.... The website said the last time the colleague voted was 2020 also by absentee, this guy lives near Milwaukee. The man was kinda mad and the elderly woman had no answers, she told him to tell people running it... neither knew who to contact... and i'm guessing the game of tag that would be trying to find someone to tell would be a joke.

Mine seems legit.

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SOLD Barrett MRAD .300 Norma, Mags, Atlas, and MK22 Tool Kit

I have a Barret MRAD in .300 Norma Mag 26" Fluted with 142 rounds on it. Love the rifle, but I am building an ELR rile and need to use the funds for it. It comes with the pelican case and 2 mags.

If the buyer is interested I also have:
- Barrett MRAD/MK22 Toolkit 32425
- MRAD Atlas Bipod

.308 barrel is SPF

Scope and mount are not included. But willing to make the buyer a deal if they are interested.

Looking to get $4,850. We can work out shipping costs.

Open to reasonable offers and trades in .416 Barrett, .375 CheyTac

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SOLD SOLD: Not your everyday Magnetospeed.

Jeez another one for sale? Well, yes. But it's also not $500 like the Garmin.

This Magnetospeed package was I believe modeled to sell to the military or came part of a rifle package. It has a much more compact case, a very nice cordura padded soft range bag, and a protective cover for the Magnetospeed device. Oh yeah, and it's BLACK, unlike the consumer red version.

*I don't have the original bayonet guide, so I replaced it with a wooden one. Includes the cell phone dongle.

Asking $199 $189 $179 $169 shipped

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Reactions: Brym427

Rifle Scopes Are ADM QD, verical split ring mounts that bad?

This seems like a contentious question but it hasn't come up in a while so Inwas hoping to get current opinions.

My local shop that has everything I am getting for a new build has a selection of ADM mounts. I am looking for a 20 MOA base and had my eye on the Recon S type. They also have a lot of the Recon cantilever models.

I see a lot of hate for both QD mounts and vertically split rings but these rings are independent of the base so are they an exception? The only other 20 MOA bases they have are one model Vortex and a few Sphurs. I have had a Spuhr before but it's double the price and I just don't know how much better it is.

Sorry to reopen an old debate.
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SOLD WTS: American Rifle Co. 10rd mags w/LRI followers

As the title states. These were purchased with the back of the mag catch filed/sanded down. Must have done a good job because I've never had an issue with either mag shooting 6CM/243/6.5CM/260/308.

Asking $150 shipped for both

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URSA NorCal - Sunday, October 20, 2024

URSA NorCal - Sunday, October 20, 2024

Location
– Clear Lake area (same as prior, coordinates 39°14'21.0"N 122°50'50.0"W)

Setup will be done late Saturday or early Sunday morning by our NorCal crew. Target(s) will be in place at minimum 2000 yards. IRIS hit-indicators will be in place and be the sole control for official hits and misses. The initial target distance for NorCal is 2147 yards, all California-legal firearms and ammunition are allowed, no weight restrictions, and no fees.

The Match Director will decide how many shooters need to be signed up to move forward with this event. Unless the event is formally cancelled (as announced on this and other posting sites), assume it is going forward.

IF you want to shoot multiple rifles, you need to complete a registration for each one. If you expect to be shooting with us more than once, I suggest you do yourself a favor and build a text file in your word processor and then just copy and paste. NOTE: IF you seriously think you will score 5 in 10 or better, please DO take the time to enter ALL the info requested in the Build Sheet section - will save me e-mailing you to get missing info and hasten getting results posted on the URSA site (News and Stats pages) and the non-Cal Guns sites. Thanks.

If you want to shoot this event, you MUST sign up ONLINE (see below). Registrations MUST be received no later than 1 PM the day before the event. There will be NO onsite registrations. Registration is required for all shooters, spotters, and anyone that will be on or in the general proximity of the shooting line. NO exceptions!

The URSA Official Course of Fire is at FAQ 13, near the bottom of this page on the URSA website - https://www.unlimitedrange.org/operations.html All shooter should review the course of fire prior to arriving at the venue. Substantial additional data regarding URSA events are included on the same web page.

Sign-Ups: URSA uses the online program, Zoho Forms, to capture shooter Liability Releases and Build Sheet data, and spotter/other Liability Releases – Liability Releases are signed and dated at the event. Please use the appropriate link at the top of the Activity/Event Schedule page (http://www.unlimitedrange.org/activity event schedule.html). If you have any problem with the online form, please e-mail me ASAP ([email protected]). BTW, the form asks for limited “address” info (only city, state, and ZIP), we do NOT need your street address.

SOLD Premier Heritage 5-25 Gen2XR

The original alpha glass before TT came along. My favorite all time turrets and crosshair. This specific scope been a safe queen, mounted on a 6.5CM in a Spuhr mount. There are zero issues with this scope.

No TT does not warranty the scope anymore, yes you can get credit towards a trade in. Bottom line, this is still one of the best scopes ever made and now cheaper than a Vortex Razor Gen III.

Asking $2099 shipped
*throwlever and Tenebraex scope caps included

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SOLD Leupold 3-15x44 VX-5HD HTMR

Excellent condition VX-5HD w/HTMR reticle and CDS... One very small nick on the scope bell that is covered with caps. Only wounted on my Vudoo 22lr.

Glass is clean and the HTMR is a simple no-nonsense crosshair.

Included are Leupold medium 30mm rings.
*no box for the scope but I will package extremely well.

Asking $915 shipped

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