Brian Alpert

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About Brian Alpert

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  • Location
    Louisville, Kentucky
  • Interests
    Winchesters, Colts, Merwin Hulberts, U.S. Martial Arms through WWII

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  1. Here is the data on JSAR #4231 Received from Cranston arms 1/7/42 Stock #2 BBL #5942E Hammer block #4766 Hammer #7043 Bolt #5193 Locking cam #5364 Firing pin #8058 Extractor #3774 Magazine #3944 Transferred to NPC 1/15/42
  2. Harry, I'm not sure how special a documented employee owned JSAR is. Marine provenance is one thing but employee owned??? The LMG looks kinda tired. B
  3. I have several stripped receivers for sale for anyone wanting to replace that drilled and tapped or polished to death receiver. These are fully functional with clear markings, some pitting under wood, import marks "IA CO SAC CA" on the heel. $800 + postage to FFL. Another polished and blued $750
  4. Bolt catches were individually fitted so replacements do not always (actually usually) work. Fitting is not easy and may require adding additional metal to the camming surface of the bolt catch by welding.
  5. Not easily. The JSAR market is somewhat "soft" right now.
  6. That is not the bbl serial# but the locking collar #. Winfield standard spotters were not polished and blued but left with original finish or Parkerized, so I suspect someone else did this one.
  7. NPC stands for Netherlands Purchasing Commission, the Dutch agency which received the rifles. At this point, they were put into storage since both the Netherlands and their Malaysian colonies had fallen to the Nazis and Japanese. NPC represented the Dutch government in Exile who contracted for and owned the rifles.
  8. The treading (for a muzzle brake) is obviously not original. If it was mine, I would cut off the threaded portion, recrown, set back both the bayonet lug and front sight. No one will even notice a bbl which is 1/2 inch short. Here is the data on JSAR #6343 Received from Cranston Arms 1/30/42 Stock #2 Bbl #3568E Hammer block #6337 Hammer #2659 Bolt #7690 Locking Cam #6242 Firing pin #5090 Extractor #5125 Magazine #7956 Transferred to NPC 2/11/42
  9. OK. Realizing that Joseph Scott is the acknowledged gold standard in JSAR bbl building, here is our experience. Last year, my gunsmith, Rodney Richardson of Radcliff, Ky and I (Rodney doing and me offering moral support) put together 5 replacement JSAR bbls. The rule was trial and error. We finally settled on the following utilizing 1903, 03/A3 and Remington 700 take offs: Trim the shank and rethread to match the JSAR locking lug Concave the face of the chamber opening to roughly match that from an original bbl Screw on the locking lug and snug up against the bbl shoulder Mark the extractor cut, remove the collar and cut the extractor cut Utilizing the headspace gauge, bolt and reamer, carefully trim to correct headspace. At this point, the bolt with attached extractor should close over the "go" gauge but not over the "no go" or "field" with appropriate clearance for the bolt head and extractor Turn the appropriate area of the mid bbl to the inner diameter of the locking collar Insert the bbl into the receiver and engage the bolt so that it locks to the bbl Slide the locking collar on the bbl so that the lug locks behind the bbl latch. Fix in this position with Loctite. Remove assembly the next day, drill and place appropriate size taper pin to permanently fix collar in place. Turn and step bbl appropriately and mount front sight and bayonet lug. Again this is easier and more accurate if you do it with Loctite 1st You may still have to so some fine adjustment of headspace Hope this helps B I forgot to note that after making the extractor cut, screw the collar back on the bbl
  10. Only 900 Chilean JSARs were produced. They came with the Dutch slings and apparently bayonets. I suspect the sheaths were produced in Chile since obviously the design, leather and finish are completely different. Fortunately, the rifles and bayonets were little if at all used when imported by Navy Arms in the late 70's and most are pristine today.
  11. i notice your bolt is original to the rifle. That is amazing on a sporter!
  12. Contact me @
  13. Here is the data on JSAR #5546. I am never in a hurry with these since nothing ever seems to match on spotters. Actually, the only ones that seem to regularly match are the Chilean contract which were apparently stored and not messed with. At any rate, enjoy Transferred to Johnson Automatics 1/15/42 Stock #2 Bbl #6355E Hammer block #4127 Hammer #6670 Bolt #3326 Locking cam #5374 Firing pin #8771 Extractor #2031 Magazine #6984 Transferred em to NPC 1/21/42 A few thoughts on your JSAR. Johnson purchased 250 JSARs from the US Govt after the war and sold them with certificates of authenticity to NRA members for the amazing sum of $250! In 20+ years of collecting and dealing in JSARs I have never seen a certificate of authenticity. The stock on your rifle has the contours of a Winfield standard sporter but with a composition butt plate rather than recoil pad (which could have been changed due to pad deterioration). The high gloss blue was usually done on Winfield Deluxe Sporters and Deluxe Military models. Indeed, I have never seen that kind of finish on a Standard Sporter. Johnson Automatics made bbls and rebarreled rifles for the commercial market. When they went under and Johnson went to work for Winchester, part of the deal was that Winchester take over the Johnson parts inventory which they promptly sold to Numrich (Gun Parts Corp). Cecil Jackson, who purchased most of the JSARs from the Dutch, first importing them into Canada and later setting up Winfield Arms in LA, bought most of the Numrich inventory to rehabilitate his JSARs. The bbl has the look of a Standard Sporter with original front sight but no bayonet lug. Perhaps it was part of that inventory. Winfield used a variety of bbls on Standard Sporters, the most common being reworked Garand bbls which are easily identified by the pin groove and remnants of the hand guard clip grooves over the chamber. Lots of history here but all of this is documented. B
  14. Bob, I will ask him for a price on welding and further modifying your receiver, fabricating and fitting a type 2 sight base and fitting your magazine support assembly (which were individually fitted, thus not really interchangeable). He is very good and very slow since his day job is installing and repairing industrial cranes all over the midwest. I will see what the price of the Dror bolt rear and FP is. The ejector assembly is around $35. B
  15. Bob, In looking at your cut receiver, it had not yet been completely modified to fit the LMG parts set as evidenced by the fact that the cuts for the lock plunger haven't yet been made. I'll check with my gunsmith about the cost of welding the receiver back together, providing either a type 1 or type 2 sight base and modifying it to accept the LMG parts set.. You will need a rear sight assembly, MG bolt rear and firing pin. The Dror (Israeli Johnson) rears and Fps are interchangeable. They go for around $120. Ejector assemblies are readily available. B