This design was approved in 1803, but was not produced until 1810. A notched rear sight was brazed to the barrel though it still used the bayonet lug as the front sight, a pistol grip trigger guard was also added to this weapon. The barrel was shorted to 39" as compared to the British New Land Musket above. The lock plate measures 6 7/8" x 1 1/4". The throw of the cock is 1 3/4".
| 686 | Set of Lock Castings | $125.00 | |
| 686 AS | Assembled Lock | $295.00 | |
| 686 LP | •Lock Plate | $18.95 | |
| 686 C | •Cock | $18.95 | |
| 686 TJ | •Top Jaw | $12.95 | |
| 686 F | •Frizzen | $18.95 | |
| 686 FS | •Frizzen Spring | $18.95 | |
| 686 T | •Tumbler | $12.95 | |
| 686 B | •Bridle | $12.95 | |
| 686 S | •Sear | $12.95 | |
| 686 SS | •Sear Spring | $12.95 | |
| 686 MS | •Main Spring | $18.95 | |
| 686 TJSX | Top Jaw Screw | $9.95 | |
| 686 LSS | Lock Screw Set | $19.95 | |
| 686 BP | Butt Plate | $29.95 | |
| 686 TG-B | Trigger Guard (Light Infantry) | $29.95 | |
| 686 TP | Trigger Plate | $12.95 | |
| 686 TR | Trigger | $9.95 | |
| 686 SP | Side Plate | $14.95 | |
| 686 SLSX | Side Lock Screw (2 Needed) | $4.95 | |
| 686 MT | Middle Thimble | $10.95 | |
| 686 FT | Front Thimble | $15.95 | |
| 686 NC | Nose Cap | $12.95 | |
| 686 FSSW | Front Sling Swivel | $12.95 | |
| 686 FSSWS | Front Sling Swivel Stud | $5.95 | |
| 686 FSSWSX | Front Sling Swivel Screw | $2.95 | |
| 686 RSSW | Rear Sling Swivel | $12.95 | |
| 686 RSSWSX | Rear Sling Swivel Screw | $2.95 | |
| 686 BA | Barrel | $245.00 | |
| 686 BRP | Breech Plug | $24.95 | |
| 686 BUL | Barrel Underlug (3 Needed) | $5.95 | |
| 686 BK | Barrel Key (3 Needed) | $9.95 | |
| 686 RS | Rear Sight (Light Infantry) | $14.95 | |
| 686 TASX | Tang Screw | $4.95 | |
| 686 ST-B | Stock (Light Infantry) | $265.00 | |
| 686 RR-B | Ramrod (Light Infantry) (Steel) | $49.95 | |
| 686 BAY | Bayonet | $99.95 | |
| 686 PARTS-B | Parts Set with Set of Lock Castings | $975.00 | |
| 686 PARTSAS-B | Parts Set with Assembled Lock | $1095.00 |
•Included in a Set of Lock Castings.