MAX-11A1 and MAX-31A mk1 Upper Receiver and Accessories



MAX-11A1 Upper Receivers

Due to decreased demand in the past couple of years, the MAX-11A1 Upper receivers have been discontinued. However, we still provide service and accessories for these upper receivers.



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MAX-11A1/380 Upper Receiver

Description PRICE
Side cocking upper receiver for the M-11A1 .380 ACP SMG. Reduces rate of fire from 1,800 ROM to 600 RPM. Features a polymer foregrip with Picatinny rail on bottom, Picatinny rail on top between iron sights. $795.00 DISCONTINUED

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MAX-11A1/380 Flat Top Upper Receiver

Description PRICE
This Slow Fire Upper Receiver is the same as the MAX-11A1/380 above, except with a full length M1913 Picatinny rail on the top. Designed for use with removeable AR-15/M-16 sights (not included), or can be used with just a scope installed. When used with a C-More or Aimpoint red dot scope, flip up iron sights will co-witness with the red dot. $795.00 DISCONTINUED

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MAX-11A1/9 Upper Receiver

Description PRICE
This upper receiver is a 9mm version of the MAX-11A1 upper receiver descibed above. Uses inexpensive 9mm ammunition and reduces the rate of fire (ROF) from 1,800 RPM down to around 950 RPM. The MAX-11A1 attaches to the stock M-11A1 lower receiver without any modification to the lower receiver. $795.00 DISCONTINUED

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MAX-11A1/9 Flat Top Upper Receiver

Description PRICE
This Slow Fire Upper Receiver is the same as the MAX-11A1/9 above, except with a full length M1913 Picatinny rail on the top. Designed for use with removeable AR-15/M-16 sights (not included), or can be used with just a scope installed. When used with a C-More or Aimpoint red dot scope, flip up iron sights will co-witness with the red dot. $795.00
DISCONTINUED


Foregrips

The MAX-11A1 comes standard with a polymer foregrip with bottom Picatinny rail. These foregrips are for if you need a replacement or prefer a different material or style.

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Polymer K-Grip

Description PRICE
Designed for use with the MAX-11A1 Slowfire Upper Receiver, this K-Grip replaces the standard grip. The grip is forward canted allowing a natural shooting stance. Easy to install, just remove the retaining pin from the MAX-11A1, remove grip, slide on K-Grip and re-install retaining pin. $75.00 DISCONTINUED

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Metal Foregrip, High Mount

Description PRICE
Designed for use with the MAX-11A1 Slowfire Upper Receiver, this all metal foregrip replaces the standard MAX-11A1 grip. The front is aluminum and the rest is all steel. Finished in tough KG Gunkote to match the manganese phosphate finish of the MAX-11A1. Features an integral lower picatinny rail. This high mount version provides a higher mounting of a vertical grip to keep your hand closer to the barrel centerline. To add or remove an accessory from the the lower rail requires removal of the 4 mounting screws. The bottom picatinny rail fits flush with the bottom of the lower receiver. $115.00

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Metal Foregrip, Low Mount

Description PRICE
Designed for use with the MAX-11A1 Slowfire Upper Receiver, this all metal foregrip replaces the standard MAX-11A1 grip. The front is aluminum and the rest is all steel. Finished in tough KG Gunkote to match the maganese phosphate finish of the MAX-11A1. Features an integral lower picatinny rail. This low mount version allows addition or removal of accessories from the the lower rail without removal of the 4 mounting screws. The bottom picatinny rail protrudes below the bottom of the lower receiver. $115.00

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Metal Foregrip, K-Grip

Description PRICE
Designed for use with the MAX-11A1 Slowfire Upper Receiver, this all metal foregrip with polymer forward canted K-Grip replaces the standard MAX-11A1 grip. The front is aluminum and the rest is all steel except the K-Grip handle. Finished in tough KG Gunkote to match the maganese phosphate finish of the MAX-11A1. Features a forward canted K-Grip without a picatinny rail on the bottom. $115.00

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Forward Canted K-Grip, Clamp On

Description PRICE
This clamp on K-Grip attaches to any M1913 Picatinny rail. The canted angle allows a natural shooting stance which is more comfortable than a straight vertical grip. The clamp is made from 6061 aluminum and finished in black anodize. The grip portion is made from black polymer and will stay cool during extended shooting sessions. #419A $49.99


Barrels

The MAX-11A1/380 comes standard with a 1/2-28 threaded barrel and 9mm "Bird Cage" flash hider installed. These barrels are for if you need a replacement.

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8" Replacement Barrel, .380 ACP

Description PRICE
Made from 4140 Chrome Moly steel, these barrels are finished in black oxide. Muzzle threaded 1/2-28. Chambered in .380 ACP. Barrel is engraved with bullet caliber. #252 $86.00

The MAX-11A1/9 comes standard with a 1/2-28 threaded barrel and a 9mm "Bird Cage" flash hider installed. These barrels are for if you need a replacement or different barrel thread for use with a suppressor. You can purchase your MAX-11A1/9 with any of these barrels, instead of the standard, for an additional charge.

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8-3/8" Replacement Barrel, 9mm

Description PRICE
Made from 4140 Chrome Moly steel, these 8-3/8" long barrels are finished in black oxide. Muzzle threaded 1/2-28. #44 $86.00

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8-5/8" Barrel, 3/4-10 Thread, 9mm

Description PRICE
Made from 4140 Chrome Moly steel and finished in black oxide, these 8-5/8 inch barrels are threaded 3/4-10 on the muzzle for use with the standard M-11/9 suppressor. #64 $106.00

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8-3/4" Barrel, 3-Lug, 9mm

Description PRICE
Made from 4140 Chrome Moly steel, these 8-3/4 inch barrels are finished in black oxide. Muzzle end has a 3-lug machined on the end. #59 $184.00


Bolt Assemblies

The MAX-11A1/380 comes standard with a 600 RPM bolt assembly installed.
The MAX-11A1/9 comes standard with a 950 RPM bolt assembly installed.
These bolt assemblies can be purchased as a replacement or spare.

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MAX-11A1/380 Standard Bolt

Description PRICE
600 RPM bolt assembly for the MAX-11A1/380. ".380 ACP" is engraved on bolt. #249 $205.00

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MAX-11A1/9 Standard Bolt

Description PRICE
600 RPM bolt assembly for the MAX-11A1/380. "9mm" is engraved on bolt.#255 $205.00 DISCONTINUED


Stocks


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Fixed Buttstock, 8-7/8"

Description PRICE
This durable black polymer buttstock is is designed for use with the aftermarket M-11A1 upper receivers with higher sights or optics. This buttstock features a sling mount on the top rear of the buttstock. Easily installs with one screw and a threaded block that drops inside the lower receiver. Measures 8-7/8" from rear of receiver to end of buttpad. Length from backstrap of grip to buttpad is 11-1/8". Also available in 1" and 2" shorter length. Weighs 10.2 Ounces.
6-7/8" Fixed Stock. #325 $129.98
7-7/8" Fixed Stock. #319 $129.98
8-7/8" Fixed Stock. #318
(Recommended Length)
$129.98

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Left Folding Buttstock, 9-1/2"

Description PRICE
This durable black polymer buttstock is is designed for use with the aftermarket M-11A1 upper receivers with higher sights or optics. This left folding buttstock features a sling mount on the top rear of the buttstock. When folded, it will not interfere with operation of the subgun. Easily un-folds and solidly locks in place. Installs with one screw and a threaded block that drops inside the lower receiver. Measures 9-1/2" from rear of receiver to end of buttpad. Length from backstrap of grip to buttpad is 11-7/8". Also available in 1" and 2" shorter length. Weighs 13.2 Ounces.
7-1/2" Folding Stock. #309 $209.99
8-1/2" Folding Stock. #310 $209.99
9-1/2" Folding Stock. #311
(Recommended Length)
$209.99

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ACE Rifle Stock Adapter

Description PRICE
This stock adapter is designed for use with the aftermarket M-11A1 upper receivers with higher sights or optics. Allows use of buttstocks manufactured by ACE LTD. USA. #32 $79.00


Grips

These grips fit the SWD M-11A1 .380 ACP lower receiver. This is the lower receiver that has the same larger magwell as the 9mm SWD M-11/9. We do not make any grips for the smaller magwell on the RPB or MAC .380 ACP SMG's.

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2-Piece Molded Grip

Description PRICE
This molded polymer grip features one finger groove, ribs on the front, stippling on the sides, is more rounded on the backstrap than the stock grip and extends lower. It also features a "mag funnel" on the bottom. #257 $49.99

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2-Piece Molded Grip with Thumb Activated Magazine Release

Description PRICE
This molded polymer grip has the same features as the 2-piece molded grip above, with the addition of a lever above the grip to activate the heel mounted magazine release. #258 $79.99

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2-Piece Molded Grip, RPB Small Magwell

Description PRICE
This molded polymer grip features one finger groove, ribs on the front, stippling on the sides, is more rounded on the backstrap than the stock grip and extends lower. It also features a "mag funnel" on the bottom. This grip is for the RPB and MAC .380 ACP guns that have the smaller magazine housing and take the smaller magazines. #272 $49.99


Accessories

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Side Accessory Rails

Description PRICE
Left and right side accessory rails for attaching additional accessories to the sides of the MAX-11A1 Slow Fire Upper Receiver such as flashlights or lasers. Matches the bottom accessory rail provided with the stock front grip on the MAX-11A1 Slow Fire Upper Receiver. Provided with spacers to allow use of accessories that require a higher mount. All mounting hardware provided. #17 $49.99 DISCONTINUED

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M-11A1 Select Fire Competition Trigger

Description PRICE
The Select Fire Competition Trigger provides a more ergonomic trigger and a perceived reduction in trigger pull. This trigger does not reduce the measured trigger pull of the stock M-11A1 (around 10 lbs.) However, due to the 3/8” wide trigger, the perceived trigger pull is less. Trigger is fully assembled. Disconnector and roll pin are already installed. Trigger installs the same as the OEM trigger except the wider trigger shoe is installed with two #1-64 set screws. Allen wrench required for assembly is included. This trigger is manufactured from 6061 aluminum and features a hard coat black anodized finish. The disconnector and roll pin are made from steel and black oxide finished. #169 $79.99

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M-11A1 Full Auto Only Competition Trigger

Description PRICE
The Full Auto Only Competition Trigger provides a more ergonomic trigger and reduces the measured trigger pull to around 8-1/4 pounds. Due to the 3/8” wide trigger, the perceived reduction in trigger pull is even less. Elimination of the disconnector and trigger spring results in a shorter and lighter trigger pull. After installation of this trigger, the gun will fire in full auto whether the selector is set to “Semi” or SMG”. A benefit of the this feature is that you will not accidentally start shooting a match with the gun shooting in semi-automatic. This trigger is manufactured from 6061 aluminum and features a hard coat black anodized finish. #168 $49.99

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Extended Safety

Description PRICE
This extended safety makes it quick and easy to positively engage and disengage your safety. Great for use in subgun competitions. Get on target quickly without fumbling with the safety. Will fit the M-11A1, M-11/9, M-10/45 or M-10/9. #6 $49.99

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Internal Safety Slide

Description PRICE
This internal safety slide replaces the cheap cast aluminum one that came with your M-11A1. It is designed to have more bearing surface and is made from steel with a black oxide finish. The picture to the left shows the original safety slide on the top and the new and improved Lage Mfg. steel safety slide on the bottom. The picture clearly shows how the original aluminum safety slide can become warped and battered. #51 $29.99

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Hardened Sear

Description PRICE
This M-11A1 Sear is hardened to provide extra strength and durability. Original sears may have been improperly hardened during the rush to get as many M-11A1 machineguns manufactured and registered prior to May of 1986. If your M-11A1 ocasionally continues to fire after letting go of the trigger or "runs away", your sear may be worn. Check the tip of the sear that engages the sear notch in the bolt to make sure it is not rounded off. If it is, replace the sear. These sears are made from 4140 steel and hardened to 42-46 on the Rockwell C Scale. #106 $49.99

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Improved Extractor

Description PRICE
If you are experiencing extraction problems with your SWD M-11A1, odds are you need to replace your extractor with this improved design. This new design, which is standard equipment on all MAX-11A1 Slowfire Upper Receivers, features a wider extraction groove and improved angle on the face of the extractor. Manufactured from 4140 hardened steel and finished in black oxide, this extractor is built to last. #50 $12.00

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Buffer

Description PRICE
This replacement buffer for the M-11A1 is manufactured from 1/4" thick neoprene. It is precision cut to insure a perfect fit and reliable performance.#63 $5.00

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Feed Lip Kits

Description PRICE
Steel feedlip inserts to repair your worn out Zytel magazines. Also can be used to convert a standard M-11/9 magazine to shoot .380 ACP. ***FREE Shipping *** #1 $5.00

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Extended Cocking Knob

Description PRICE
Extended cocking knob for use exclusively with the MAX-11A1Slow Fire Upper Receiver. 1/2" longer than the stock cocking knob to allow use with scopes or mounting systems that may interfere with the standard cocking knob. #33 $24.99 DISCONTINUED


****************** Legacy Products *******************

The MAX-31A Upper receiver has been discontinued and replaced by the MAX-31A mk2. However, we still provide service and accessories for these upper receivers.

These items are unique to the MAX-31A and are not compatible with the MAX-31A mk2.

MAX-31A Upper Receiver

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MAX-31A Upper Receiver

Description PRICE
Slow fire upper receiver for use with the M-11A1 .380 ACP SMG. Converts the M-11A1 to 9mm and uses 72 and 50 round Suomi M31 9mm magazines. $895.00 DISCONTINUED
YouTube Video

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Competition Foregrip

Description PRICE
This longer foregrip is designed for subgun competition use. It is 1" longer to provide a longer hold that provides better control of the weapon. #179 $75.00


Bolt Assemblies

The MAX-31A comes standard with a 650 RPM bolt assembly installed. These bolt assemblies can be purchased as additional bolts so you can change your rate of fire. Changing the bolt is as simple as removing the MAX-31A upper receiver from your M-11A1 lower receiver, sliding out the existing bolt and sliding in the new bolt. You can purchase your MAX-31A with the speed bolt, instead of the standard, for no additional charge.

Please note: some 9mm ammo is "hotter" than others and will result in varying the Rate of Fire. For instance, Winchester White Box 115 gr. ammunition is on the "hot" side, Federal 115 gr runs middle to high.

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Standard Bolt Assembly

Description PRICE
Replacement Bolt Assembly for the MAX-31A. Rate of fire is approximately 650 RPM. #189 $245.00 DISCONTINUED

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Speed Bolt Assembly

Description PRICE
This bolt assembly provides a faster rate of fire for those that like a more aggressive rate. Rate of fire is approximately 900 to 1,000 RPM, depending on ammunition used. #177 $245.00 DISCONTINUED

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Side Accessory Rails

Description PRICE
Left and right side accessory rails for attaching additional accessories to the sides of the MAX-31A foregrip such as flashlights or lasers. Matches the bottom accessory rail provided with the stock front grip on the MAX-31A. Each rail installs with two #10-24 screws, provided. #174A $49.99 DISCONTINUED


Note: All prices are subject to change without notice.