diff --git a/vacuum_gambit.p8 b/vacuum_gambit.p8
index eaedf07..8d34d27 100644
--- a/vacuum_gambit.p8
+++ b/vacuum_gambit.p8
@@ -730,6 +730,27 @@ gun_base = mknew{
  -- cooldown reduction from
  -- upgrades, not yet applied
  cd_remainder = 0,
+
+ veloc = 1,
+ aim = 0.75, -- down; 0.25, or -0.75, is up
+ shot_idx = 0,
+ -- shots: list<list<[3]num>>
+ --  describing a cycling
+ --  firing pattern. shot_idx
+ --  tracks offset into pattern.
+ -- each nested list: a burst
+ --  of shots to fire; takes
+ --  1 ammo; sequential
+ -- each shot: angle (turns,
+ --  relative to `aim`),
+ --  firing x-offset, velocity;
+ --   if x-offset is nil, use 0;
+ --   if velocity is nil, use
+ --    self.veloc instead
+
+ init = function(self)
+  if (not self.shots) self.shots = {{{0}}}
+ end
 }
 
 -- gun_base subtypes are
@@ -754,12 +775,6 @@ function gun_base:peel()
  self.munition = mknew(self.munition.new())
 end
 
--- default firing behavior:
--- single shot
-function gun_base:actually_shoot(x, y)
- self.munition.new{}:spawn_at(x, y)
-end
-
 -- upgrade 
 function gun_base:small_upgrade_opts()
  local ret = {
@@ -874,29 +889,7 @@ function gun_base:shoot(x, y)
  return true
 end
 
-trig_gun = mknew(gun_base.new{
- veloc = 1,
- aim = 0.75, -- down; 0.25, or -0.75, is up
- shot_idx = 0,
- -- shots: list<list<[3]num>>
- --  describing a cycling
- --  firing pattern. shot_idx
- --  tracks offset into pattern.
- -- each nested list: a burst
- --  of shots to fire; takes
- --  1 ammo; sequential
- -- each shot: angle (turns,
- --  relative to `aim`),
- --  firing x-offset, velocity;
- --   if x-offset is nil, use 0;
- --   if velocity is nil, use
- --    self.veloc instead
- init = function(self)
-  if (not self.shots) self.shots = {{{0}}}
- end
-})
-
-function trig_gun:actually_shoot(x, y)
+function gun_base:actually_shoot(x, y)
  local shots,veloc,aim,munition = self.shots,self.veloc,self.aim,self.munition
  local idx = self.shot_idx % #shots + 1
  self.shot_idx = idx
@@ -955,7 +948,7 @@ zap_p = mknew(zap_e.new{
  category = player_blt_cat,
 })
 
-zap_gun_e = mknew(trig_gun.new{
+zap_gun_e = mknew(gun_base.new{
  cooldown = 0x0.0020, -- frames between shots
  veloc = 4,
  munition = zap_e,
@@ -1019,7 +1012,7 @@ blast = mknew(bullet_base.new{
  category=player_blt_cat
 })
 
-blast_gun = mknew(trig_gun.new{
+blast_gun = mknew(gun_base.new{
  icon = 13,
  cooldown = 0x0.0078, -- 120 frames between shots
  aim = -0.75,
@@ -1065,7 +1058,7 @@ protron_p = mknew(protron_e.new{
  category=player_blt_cat,
 })
 
-protron_gun_e = mknew(trig_gun.new{
+protron_gun_e = mknew(gun_base.new{
  icon = 25,
  cooldown = 0x0.0040, -- frames between shots
  ammo = nil,
@@ -1118,7 +1111,7 @@ vulcan_p = mknew(vulcan_e.new{
  category=player_blt_cat
 })
 
-vulcan_gun_e = mknew(trig_gun.new{
+vulcan_gun_e = mknew(gun_base.new{
  icon = 37,
  cooldown = 0x0.0003, -- frames between shots
  ammo = nil,